Spellslinger - book 4: Soulbinder

Fate can be fatal. Kellen and his murderous squirrel cat, Reichis, are on their own. They’ve heard rumour of a mythical monastery, known as the Ebony Abbey. It’s a place that outsiders can never find – but Kellen is getting desperate. He’s been told that the monks inside the Ebony Abbey know more about the Shadowblack than anyone else – and that they even know how to cure it.

Then Kellen and Reichis are separated and for the first time, Kellen must face the world alone – and venture deeper into shadow magic than he ever knew he could.

"Gloriously escapist fantasy."
Observer

"Exotic, original and gripping."
Jonathan Stroud