Lies, Textbooks, and Leprechauns

(Demonology Book 3). Olivia and Kristian are missing, they vanished without a trace. Zack has returned for his second year at the University of Waterloo, already preparing to face off against Greed to find the missing vessels. He has spent the summer training and preparing for the inevitable showdown.
Greed however may have other plans, his focus on gathering only the most powerful leading him right to Ethel. She has no intention of joining him but he is sure he can find a way to persuade her.
All of this while a series of new murders begin to crop up all over the city, their only connection being Ahmed's visions.