From New York Times Bestselling Ya Author Rebecca Mix Comes The First Book In A Breathtaking Middle Grade Fantasy Duology About A Young Fairy Who Has Always Lived In Her Heroic Grandmother’S Shadow But Now Must Step Up And Embark On A Quest To Save Her Mother From The Ever-Creeping Mold Overtaking Their World. Perfect For Readers Who Loved Brandon Mull's Fablehaven, The City Of Ember By Jeanne Duprau, And Endling: The Last By Katherine Applegate. The Mold Takes All. Twelve-Year-Old Fairy Canary Mossheart Knows This Better Than Most. A Few Years Ago, The Mold Took Her Papa, And Even Her Famous, Former-Chosen-One Gran Never Found A Cure. So When Ary's Beloved Mama Falls Ill, Ary Decides It’S Taken Enough. Armed With Only A Bucket And A Prayer, She Sneaks Out To Find A Magical, Underground Lake Whose Healing Waters Are Straight Out Of Gran’S Adventures. But When Ary Gets There, The Lake’S Bone Dry, And Instead Of Healing Waters, She Finds A Terrifying Secret: Her Entire World Is Actually Trapped Inside A Giant Terrarium—One They Were Meant To Leave Centuries Ago. Worse, Gran Knew And Hid The Truth, Dooming Ary And Her Generation To A Dying, Rotting World. Now, Allied With Only Her Doomsday-Obsessed Frenemy, A Timid Pill Bug, And A Particularly Grumpy Newt, Ary Has One Week To Unravel The Clues And Find A Way Out Of The Terrarium—Or They’Ll Be Trapped For Good. .