Beyond the Deepwoods by Paul Stewart

Abandoned at birth in the perilous Deepwoods, Twig Verginix is brought up by a family of woodtrolls. One cold night, Twig does what no woodtroll has ever done before – he strays from the path. So begins a heart-stopping adventure that will take Twig through a nightmare world of fearsome goblins, bloodthirsty beasts and flesh-eating trees. Can he discover the truth about his past? Beyond the Deepwoods is the first book of the Twig Saga – second trilogy in The Edge Chronicles. Each book is a stand-alone adventure, so you can read The Edge Chronicles in any order you choose.