The Problem Child

The Problem Child is the third novel in The Sisters Grimm series written by Michael Buckley.

Sabrina is confronted by a mentally challenged girl who has kidnapped her parents (who may be the person mentioned in the title) and a vicious monster, continues to fight when Puck comes to save her (once again, he complains). Just then, the portal which Sabrina used to get to her parents burns out, and Sabrina and Puck are trapped in an old asylum. Puck and Sabrina escape, but Sabrina is injured by the monster. After her injuries heal at the hospital, Sabrina goes back with her family to Relda's house where they hold a celebration to welcome back Sabrina. That night, after investigating through many journals, the criminal becomes clear: Little Red Riding Hood. The following night, wanting to know about Red Riding Hood, Sabrina, Daphne, and Puck go to the ruins of the asylum where she had met the Everafter child. They search for medical files in hopes of finding a clue, but a mysterious man discovers them. He seems to know Sabrina and Daphne's name, but thinking that he is part of the Scarlet Hand, the three escape back to her grandmother's house.

In the morning, Sabrina, Daphne, Relda and Puck travel to the newly built school for the opening ceremony, where Mayor Prince Charming gives a speech. However, he is distracted when the Queen of Hearts announces that she dislikes Charming's ideas and she will seek election as mayor. Suddenly, just as the chaos began, the mysterious man Sabrina had met at the ruin pops out of nowhere. He turns out to be Jacob Alexander Grimm, Relda's son and Henry's brother who gets Sabrina addicted to magic and later gets her into trouble with Baba Yaga, an ancient witch who is rumored to be a cannibal. That night, while everyone was asleep, Sabrina sneaks into the room where Jacob was sleeping, to take a look at the files in search for clues. She accidentally wakes Jacob, but instead of sending her back to bed, he explains about a few things about Red Riding Hood. The kidnapper had fallen in despair after she had lost many people that she had cared for, and thinking that her dead kitten was the ferocious monster called the Jabberwocky, she went on kidnapping other people she thought she had lost. That was how the sisters Grimm's parents were kidnapped, with Little Red Riding Hood thinking that they were her dead parents. Red Riding Hood seems evil only because of the Jabberwocky; once the Jabberwocky is killed, she is not to be feared. But Sabrina discovers that the only thing that can kill the Jabberwocky is the Vorpal blade, which was divided into three pieces and distributed to separate places in Ferryport Landing. They already have the first piece. Sabrina, Daphne, and Jacob must find the remaining two.