『열기구가 사라졌다』는 우연히 만난 세 사람이 잃어버린 열기구를 찾아가는 이야기로, 모험을 통해 각자의 상처를 극복해 가는 과정이 유쾌하고 따뜻하게 그려진다.

A heartfelt middle-grade novel from New York Times bestselling author Barbara O’Connor about a boy whose life is upended after the loss of his older brother―timeless, classic, and whimsical.

Walter Tipple is looking for adventure. He keeps having a dream that his big brother, Tank, appears before him and says, “Let’s you and me go see my world, little man.” But Tank went to the army and never came home, and Walter doesn’t know how to see the world without him.

Then he meets Posey, the brash new girl from next door, and an eccentric man named Banjo, who’s off on a bodacious adventure of his own. What follows is a summer of taking chances, becoming braver, and making friends―and maybe Walter can learn who he wants to be without the brother he always wanted to be like.

Halfway to Harmony is an utterly charming story about change and growing up.