Intrepid fairy-tale detectives Sabrina and Daphne Grimm investigate a sudden streak of magical thefts that might add up to a very grim future for their family, who are not so popular in Ferryport Landing these days. With Granny Relda desperately scrambling to pay Mayor Heart's outrageous taxes on humans, the Sisters Grimm tackle their first solo case--with a little help from Puck, of course.

Meanwhile, their old friend Mr. Canis seems to be losing his grip on his human self, becoming more like the Big Bad Wolf every day. Can Sabrina and Daphne solve the crime and change their family's future for the better?

Millions of readers have fallen in love with the Grimm sisters' adventures. The series is ideal for middle-grade readers, but enjoyable for anyone who loves a good fairy tale twist.