Drustina gets involved in a war of attrition with the Viking invaders of Hibernia by plaing a game of 'Cat and Mouse' amidst the various islands and rivers that comprise the estuary of the river Shannon. She achieves a spectacular success at the little town of Askea where the island crossing and rocky gully proves to be a perfect place to set one of her cunning traps.

The Island at the town of Askeaton where the battle was fought. Though Drustina's fight predates the castle and the present abbey.

River Deel in full flood. A dangerous and treacherous river.