When Chris Taylor signs up to volunteer at the Raven Hill Retirement Home, he has no idea what he\"s getting himself into. It turns out that these residents are no ordinary grandmas and grandpas--they\"re monsters! In the first two books of M. D....

The boys continue their African adventure as a mysterious calling leads them to the heart of the Congo in search of a \\\"lost\\\" group of monsters. Their expedition is cut short by the appearance of Inkanyamba, an ancient serpent-like creature that has caused the boys\" skin to break out in tiny, snake-filled boils....

When Raven Hill Retirement Home is destroyed by an evil villain, Chris must help his crew of elderly monsters seek shelter elsewhere. But new enemies await them at every turn, and each confrontation leads to even grosser outcomes than the one before....