The Voyage of Sam Singh

Sams older brother, Moon, has been missing for three long years. Moon is a skilled thief, but Sam fears Moon's luck has finally run out. It's rumoured he's held in the Octopus, a notorious prison on the Isle of Lost Voices, from which no one has ever escaped alive. Leaving his tribe of land-pirates behind, Sam sets sail with the shady Professor Bogusz and his faithful parrot, Suka. With help from a young forest guide called Lola, they trek deep into the island's interior, a place where spirits dwell and the Octopus casts a deadly shadow.