Claire Martinson still worries about her older sister Sophie, who battled a mysterious illness last year. But things are back to normal as they move into Windermere Manor . . . until the sisters climb a strange ladder in a fireplace and enter the magical land of Arden.
There, they find a world in turmoil. The four guilds of magic no longer trust each other, the beloved unicorns have disappeared, and terrible wraiths roam freely. Scared, the girls return home.
But when Sophie vanishes in the night, it will take all of Claire's courage to climb back up the ladder, find her sister, and uncover the unicorns' greatest secret.

A missing sister.  A secret fireplace. 

A dangerous world of magic and adventure. 


The UK cover for The Unicorn Quest

Spring IndieNext Pick 

A Mighty Girl's Book of the Year  

ALA Booklist Top Ten First Novels for Youth 

Book Expo America Middle Grade Buzz Pick

Hand to readers who love Narnia. 

–  School Library Journal

Fans of magic and fantasy, especially those who love Madeleine L'Engle's A Wrinkle in Time or the darker, creepy atmosphere in Neil Gaiman's Coraline, can't miss this debut.

 –  Booklist, starred review

Utterly delightful!

Taps into the wonderful childhood fantasy of finding a secret door to another world.

 –  Jessica Day George

 New York Times bestselling author Tuesdays at the Castle

An adventure-quest brimming with magic and heart...Mesmerizing. 

–  Roshani Chokshi

 New York Times bestselling author of The Star-Touched Queen


Draws you into a richly imagined alternate world, keeps you on edge with clever twists and turns, then leaves you breathless as it gallops to its sensational climax! 

–  Bruce Coville

 author of The Unicorn Chronicles series 

Dazzling and richly imagined . . . a must read.

–  Peter Lerangis

New York Times bestselling author of the Seven Wonders series,

Filled with wondrous surprises, fascinating magic, and appealing characters,

it hits all the right notes, and I loved every second of it! 

–  Sarah Beth Durst

Author of Journey Across the Hidden Lands 

 Be transported to a lush land full of intrigue, danger, and thrilling magic! Will keep readers madly flipping the pages of this new, timeless adventure. Spectacular!

–  Jennifer Lynn Alvarez

 author of The Guardian Herd series and Riders of the Realm