Chloe Neill’s book “Blood Games” is the ninth installment in the Chicagoland Vampires series. This urban fantasy book presents Merit, a vampire who serves as a Sentinel at Cadogan House, with her deadliest test to date. Chicago is being stalked by a killer who leaves his victims with enchanted mementos. The city runs out of options as the body count increases. Even though vampires and humans are at odds, Merit needs to identify her attacker before she becomes the next victim.