After a Fenris, or werewolf, killed their grandmother and almost killed them, sisters Scarlett and Rosie March devote themselves to hunting and killing the beasts that prey on teenaged girls, learning how to lure them with red cloaks and occasionally using the help of their old friend, Silas, the woodsman's son.

Pip and Tomas have dealt with magical creatures that burst into flames and runaway unicorns. Now they are headed with Tomas's family to Port Candor, a seaside showplace full of magical sea creatures. Soon they are surrounded by Slimekrakens and Tubafish and Spinnerseals and other dazzlers of the deep. And they are involved in a big mystery that involves a sea monster that might not be staying in its tank.

When the owner of a candy shop molds magical treats that instill confidence, bravery, and passion, eighteen-year-old Gretchen's haunted childhood memories of her twin sister's abduction by a witch-like monster begin to fade until girls start vanishing at the annual chocolate festival.

Pip and Tomas have deal with magical creatures that burst into flames and runaway unicorns. Now they have to go under the sea to deal with a new group of magical SEA creatures that are very cute but also a load of trouble.