Wererats Underground by Terry Miller

THEY'RE HUNGRY! THEY'RE HORNY! THEY'RE EMERGING FROM THE SEWERS TO TURN YOUR TOWN INTO A BUFFET OF FLESH AND BLOOD!

Having terminated a den of male wererats, Raven, an alluring and powerful Mother, claims Portsmouth for her own. Her ambitions become clear through a series of ruthless and bloody yet calculated acts. It seems there’s no stopping her until an intriguing new arrival in town disrupts her designs, forcing her to correct course in increasingly merciless and grisly ways. Will she realize her lofty goals, or will they be torn to shreds like the victims in her wake?