Elysia

The Titus Crow novels are full of acts of nobility and heroism. Titus Crow and his faithful companion fight the forces of darkness - the infamous and deadly Elder Gods of H.P. Lovecraft - wherever they arise. The powerful Cthulhu and his dark minions are bent on ruling the earth - or destroying it, yet time after time, Titus Crow drives the monsters back into the dark from whence they came.
Elysia is the sixth book in the Titus Crow series.