A banished Erin goes to the Van Helsings. After passing a lie detector test, she then has to dust a vampire to prove herself - her brother, Ryan! When Erin discovers the weapon and plan to destroy the Draculas, she sends a warning letter to Vlad, explaining that the slayers have a super weapon to use against him, a giant sun lamp. He consults his family and they tell him not to trust her; but he manages to persuade the count to go with him to the slayer base. Using cunning Erin frees Ryan, only to find he is fully changed and loyal to Ingrid. Vlad visits with the count to destroy the weapon and Erin lets them into the slayer's base and they disable the weapon. Jonno finds out Erin has betrayed him. Vlad persuades Erin to run, but as she is leaving she is kidnapped by a rebellious Bertrand who has also stolen the Praedictum Impaver, believing that Erin's blood will release the last words of the book.