Duncan is a soppy dog - sometimes. He lives with Mr Hipstone, who may once have been a pirate, and is even now rather grumpy - sometimes.

However, neither Duncan nor Mr Hipstone turn out to be quite what each other (and the reader!) expects when they set sail across the seas to a secret island, in search of treasure.

There they encounter a band of ferocious pirates - will Duncan be sacrificed for the hidden loot?

Could an old bone be the only treasure worth claiming?

Only one thing is for certain: nothing is as it seems in this wryly funny, understated yet action-packed story, written and illustrated by the incomparable Peter Utton.