Katherine KA Applegate Books in Order

Kate loves Justin but refuses to sacrifice her college scholarship for his plan to sail around the world. Grace hopes he will return to her, while Chelsea questions whether she can live without Connor after their troubled wedding plans.

Chelsea considers whether marrying Connor will strengthen their love, while Kate fears Justin will sail away when his boat is finished. Grace's worsening drinking makes her relationship with recovering alcoholic David another uncertain source of support.

Grace moves into a beach house with Justin, the boy she wants, and Kate, the girl he loves. As Kate struggles with the competition, Chelsea leaves a predictable boyfriend and considers taking a chance on Connor.

Kate, Chelsea, Grace and Justin share a beach house with very different hopes for the summer. Past heartbreak, the search for love and a desire to escape make their new friendships and romances more complicated than expected.

Friends and strangers come together in an Ocean City beach house for the summer. Kate wants to forget a failed romance, Chelsea seeks love, Grace hopes to escape her past and Justin dreams of sailing away.

Chelsea offers to marry her Irish boyfriend Connor when he faces deportation. As their wedding approaches, a visitor from his past brings an unwelcome surprise that threatens the future she thought they were about to share.

Kate settles into a shared beach house that her father dismisses as a love shack. With relationships developing all around her, she and her roommates must decide whether their summer attractions can become something more lasting.

Working at the same advertising agency brings Chelsea and Connor together again. His parents' planned visit seems a chance to strengthen their marriage, but Connor's reluctance to discuss them makes Chelsea wonder what he is hiding.

Kate regrets choosing an unfaithful Tosh, but Justin has become involved with Marta, who is struggling with Dominic's condition. Meanwhile, a passionate reunion leaves Chelsea and Connor wondering whether their marriage can survive.

Kate hopes to revive her relationship with Justin, while Chelsea and Connor struggle to rescue their marriage. Grace returns to Ocean City because of her feelings for David, bringing unresolved romances together for another difficult summer.

Kate has begun caring for Tosh when Justin returns determined to win her back. His arrival forces her to reconsider her new relationship, while Tosh's seemingly generous willingness to give her space raises questions of its own.

Summer Smith's three months in the Florida Keys are almost over. With vacation ending and little time remaining, she must decide who she truly loves and whether a summer romance can survive her return home.

Kate grows suspicious of Allegra, who turns to a new roommate while trying to escape a deceptive past. Meanwhile, Grace faces a choice between athletic Carr and intellectual Wilton as the beach house's relationships continue to shift.

Reunited Kate and Justin travel to the Caribbean to retrieve his boat and hire Allegra as skipper. When she deliberately changes course, their romantic voyage becomes a troubling puzzle about the stranger they have trusted.

Chelsea feels neglected after a New York publisher takes an interest in Connor's manuscript. Another man's attention offers comfort, but Connor's jealousy adds a new threat to a marriage already strained by his growing ambitions.

Six housemates return to Ocean City for another summer, but a serious accident leaves Kate hospitalized in a coma. Allegra's expulsion from the beach house creates another crisis as the group's relationships face painful uncertainty.

Summer's new Florida Keys life includes a waitressing job and complicated attractions. She and cousin Diana both want Seth, Adam wants Summer, and her interest in Diver collides with his feelings for her friend Marquez.

Summer Smith leaves Minnesota for a vacation in the Florida Keys and meets three intriguing boys on her first day. Wealthy Adam, laid-back Diver and seemingly perfect Seth offer possibilities, but Seth already has a girlfriend.

Alison falls for Sam, then learns her best friend Isabella loves him too and is dying. Hoping to make Isabella's remaining days happy, Alison hides her relationship with Sam, risking the love she wants to keep.

Kate and Justin become stranded on a tropical island, turning their summer into a struggle far from Ocean City. Back at the beach house, Chelsea pursues Antonio despite her doubts, while Grace weighs two very different romantic possibilities.

A teenager secretly draws Kate and Justin into a drug-smuggling operation during their voyage. While their time at sea becomes dangerous, Connor's new success as a writer changes life for those remaining in Ocean City.

As summer ends, Summer Smith must choose between fiancé Seth and the Austin she cannot forget. The decision also shapes her college plans: follow Seth to Wisconsin or remain in the Keys to pursue another future.

Summer Smith expects a perfect vacation in the Florida Keys, with a beach house and a good job. Instead, her engagement to Seth becomes complicated by other men and Caroline, a rival determined to interfere.

Summer returns to the Florida Keys believing her engagement will keep her close to Seth despite his absence. Meeting Austin, the boy who captured her heart during spring break, makes that confidence much harder to sustain.

Summer plans a Florida spring break with friends Diana and Marquez and a week alone with boyfriend Seth. Meeting mysterious Austin on the journey disrupts her expectations, as competing attractions and jealousy threaten the reunion.

This prequel follows Elfangor before the events of The Invasion, from his Andalite training to his life-changing encounter with Earth. It reveals the history behind Tobias, Visser Three, and the morphing power.

A quiet weekend becomes a major crisis when the Animorphs encounter a mysterious alien power. Working together across shifting perspectives, they must uncover what the so-called gift really costs before it is too late.

A time-travel accident strands the Animorphs in the age of dinosaurs. Far from home and surrounded by prehistoric danger, they must find a way back without changing the future they are trying to save.

The history of the Hork-Bajir invasion unfolds through Andalite, Hork-Bajir, and Yeerk perspectives. As a peaceful species becomes a target, unlikely allies fight to preserve freedom against the growing Yeerk Empire.

The Animorphs are drawn into a strange mission involving an alien threat they do not understand. With the usual rules of the war turned upside down, the team must adapt before their confusion becomes a fatal weakness.

A lost Andalite message sends the Animorphs after information that could change what they know about Elfangor and the war. Their search leads into danger, betrayal, and secrets that have waited years to surface.

Still searching for Senna and a way home, April, Jalil, David and Christopher struggle to survive in Everworld. Their journey brings them toward Merlin, a powerful figure whose influence may make their already dangerous situation worse.

David, Jalil, April and Christopher remain trapped among Everworld's giant creatures and mythological gods. With Senna missing and no clear route home, they must survive a reality that undermines everything they understood about their own world.

April, Jalil, David and Christopher's search for their missing friend has carried them through wars, monsters and magic. Their next journey takes them toward a terrifying realm where survival will demand more than growing familiarity with Everworld.

When Senna vanishes into an impossible world, David and three other teenagers follow her. Surrounded by dangerous creatures and powers they cannot understand, they must find the missing girl and a way home before the search destroys them.

You become a new Animorph recruit just as the Yeerk invasion threatens to close in. Choose your morphs and missions carefully, because every decision can lead to escape, disaster, or a very strange ending.

The Animorphs are thrown into an alternate timeline where the Yeerk invasion developed very differently. To restore their own world, they must survive a reality that shows how much worse the war could have been.

Jalil and his friends traded a chemistry textbook to the Coo-Hatch for a weapon that could help them survive. Now the aliens are combining its knowledge with their technology, creating dangerous weapons that may turn against the teenagers.

David and his friends must outwit a deadly dragon while Senna continues to appear and vanish on her own terms. Possible allies offer help, but their price is the girl who may be the teenagers' only route home.

Christopher and his friends continue slipping between ordinary school life and dangerous Everworld whenever they sleep. Arriving on Olympus, they face a war between Zeus and the alien god Ka Anor, forcing them to consider choosing sides.

April and her friends arrive on Mount Olympus and fight beside Zeus against an alien army. Their survival instincts and knowledge from home have kept them alive, but Everworld threatens to turn those trusted strengths against them.

Senna tells her side of the story after David, Christopher, April and Jalil chase her across Everworld. Her account examines why she drew them into the dangerous realm and what lies behind their struggle to return home.

Before he became the powerful Ellimist, he was Toomin, a curious being shaped by games, survival, and loss. This cosmic companion story traces how he became involved in the struggle over Earth.

The interactive Animorphs adventure continues with fresh paths through the secret war. You decide whom to trust, which animal to become, and how to survive when the Yeerks are always one choice behind you.

Called back to Olympus to help fight Ka Anor, David and his friends travel by sea. Neptune refuses to tolerate intruders, drawing them toward Atlantis while their hopes of returning to their own world remain uncertain.

April and her friends must help Merlin repair the harm left behind in Everworld. Doing so requires another confrontation with Hel, an enemy eager for revenge, while their chances of returning to ordinary life have dwindled.

Christopher and his companions wash ashore in Eire, a version of Ireland populated by giants, leprechauns and gods. They have survived other strange lands, but Merlin is closing in and is determined to take Senna.

Young refugee Kek arrives in snowy Minnesota after losing his father and brother and becoming separated from his mother. New friendships and a connection with a cow help him navigate an unfamiliar country while waiting for news.

Hallie fears leaving the grandmother who comforts her during thunderstorms when her parents decide to move west to Oregon. On the wagon journey, unfamiliar dangers and a vast buffalo herd challenge her courage and connection to home.

Summer Smith escapes Minnesota for three months in the Florida Keys, where friendship and romance quickly complicate her vacation. This collection follows her encounters with wealthy Adam, mysterious Diver and Seth, a promising boy who already has a girlfriend.

Roscoe Riley wants a trophy, but his dog refuses to learn tricks for the pet contest. Trading his grandmother's handmade sweater for a trained poodle seems like a shortcut, until the bargain creates new problems.

When his classmates won't sit still for a school performance, Roscoe Riley decides to help his teacher. His solution involves glue, turning a well-meant plan into trouble and teaching him that good intentions aren't always enough.

Roscoe Riley is determined to behave on his class trip to an apple orchard. Staying out of trouble proves difficult when an enormous apple attraction enters the picture, leaving him in a very sticky situation.

Roscoe's stuffed pig, Hamilton, has disappeared, and he suspects the class bully took it. Stealing the bully's teddy bear seems like fair revenge, but Roscoe must face the consequences of acting before he knows the truth.

Summer returns to the Florida Keys with plans to share an apartment with her friends. With her boyfriend Seth in California and Austin back in her life, friendship, summer freedom, and romantic choices become tangled.

Roscoe promises to tap-dance with his friend Emma at the school talent show. When older boys tease him for dancing, he has to decide whether their opinions matter more than keeping his promise to a friend.

Roscoe hopes to win candy for himself and books for his school library by guessing a giant pumpkin's weight. A black cat makes him worry about bad luck as his contest plans turn into another misadventure.

Talking shoes are the latest classroom craze, but Gus can't get a pair until his old sneakers wear out. Roscoe offers to help speed things along, discovering that helping a friend can lead to trouble.

Summer spends winter break in the Florida Keys, hoping for a happy holiday with her friends. Seeing her former boyfriend Austin with a new girlfriend brings old feelings back and makes Christmas more complicated than expected.

Ivan spends his days painting and watching television in a shopping mall enclosure. When a young elephant named Ruby arrives, the gorilla begins questioning their captivity and searches for a way to give her a better future.

This nonfiction picture book follows Ivan, a gorilla captured as a baby and displayed in a Tacoma shopping mall. His story introduces young readers to captivity and the growing public concern for his well-being.

Jackson's family is running short of food and money, and they may have to live in their van again. When his imaginary cat Crenshaw returns, Jackson struggles to face fears he has kept to himself.

Red, an old oak tree, shelters animals and holds the neighborhood's wishes on its branches. When a new family faces hostility, Red and a crow named Bongo try to help their human neighbors find common ground.

This illustrated book follows a child through milestones, from early birthdays toward growing up. It looks at the mistakes, practice, and uncertain beginnings behind each achievement, encouraging children to keep trying with support from those who love them.

After her pack is killed, Byx fears she is the last surviving dairne. She sets out across a dangerous kingdom with unexpected companions, hoping to find others of her kind before the forces hunting them catch up.

Byx and her companions travel north toward Dreyland, following hopes that other dairnes survive. As conflict spreads between the world's species, their search for her lost kind becomes part of a struggle larger than themselves.

A dying alien gives Jake and four other teenagers the power to become animals. This graphic adaptation follows their discovery of a secret invasion and the dangerous choice to fight creatures that can control human minds.

Jake and his friends discover a hidden alien invasion after meeting a dying Andalite. This graphic adaptation brings their first morphs, first losses, and first desperate mission to life in full color.

Bob sets out to find his long-lost sister with help from Ivan and Ruby. With a hurricane approaching, the little dog must find courage and confront what family means when the friends he loves need him.

Doggo's orderly life changes when a lively puppy named Pupper arrives. Training makes Pupper obedient but unhappy, leaving Doggo to consider whether following every rule is worth losing the playfulness that makes his new companion special.

Two powerful armies prepare for war while Byx joins a third force led by her friend, the young Lady of Nedarra. Their companions must find a way to defend peace against rulers determined to fight.

Rachel uses her cat morph to investigate whether her best friend's father has become a Yeerk host. This graphic adaptation follows her dangerous attempt to uncover the truth without exposing the Animorphs.

Willodeen loves the screechers her village treats as pests. When the beloved hummingbears stop returning, a magical birthday gift helps her and her friend Connor investigate what is going wrong in the natural world around them.

Pupper wants to be a hero, but the world seems full of frightening possibilities. When he and Doggo meet a worried baby bird, they discover how a small act of kindness can make a difference.

Playful sea otter Odder loves exploring California's coastal waters until an encounter with a shark changes her life. Told in verse, her story follows the challenge of trusting herself and the humans trying to help her.

Tobias has stayed in hawk form too long and can no longer turn human. In this graphic adaptation, he uncovers a dangerous Yeerk secret while struggling with his identity and his place among the Animorphs.