In friendship, they are linked. In eternal friendship, they will suffer. When a group of popular high school students decide to get matching henna tattoos at the Grimwood Halloween Festival, they had no idea what fate had in store for them. It was just a Native American symbol for friendship, they thought. But friendship in a place like Grimwood, as it turns out, transcends all things -- even death. And when one of the members of the group dies, then rises, they realize it's more serious than they could have imagined. The teens keep dropping and rising one by one- putting everyone around them in danger of succumbing to their sharp teeth and their curse. It's up to the others still alive to solve the problem before it gets vastly out of hand and they bring on a worldwide accidental zombie apocalypse.

*Standalone prequel to Swallow* Owen Munson has a sinister hobby. He tends to daydream about cutting up his classmates. Try as he might, he can't lock the urges away. When he seeks help from an unorthodox source, those urges that should have been closed off are actually set free. Now he's killing against his will and he's extremely good at it. He can't tell and he fears he may never be caught. Morgana Feare is obsessive and compulsive. Two very handy traits for a new detective who's eager to show her worth...but also dangerous traits if gone unchecked. After a case leads her to an unlikely place, she starts to do strange things. Her obsessiveness and compulsiveness takes over. She starts taking anything she wants causing dire consequences for the previous owners.