The Boys of Fire and Ash — Meaghan McIsaac

Abandoned at birth, the Brothers of the Ikkuma Pit know no mothers. They fend for themselves, each training their Little Brother to survive until they turn sixteen, when it's their Leaving Day. No boy knows what's beyond the forest. But when Urgle's Little Brother, Cubby, is carried off by troll-like predators, Urgle and two of his Brothers embark on a quest to rescue him from a place from which no one has ever returned.