Theo and Flora discover some disturbing clues surrounding Annabelle's mysterious disappearance. Meanwhile, it appears that Ruby may not be the only vampire in town.

Theo's mom reveals her version of Ruddy Cavern's mysterious history while the search for Annabelle heats up.

Without blood to drink, Ruby becomes weaker and weaker by the day and turns to Theo for help. Meanwhile, Flora finds herself roped into Ian and Amber's evil plans.