Freddy and Ivan have failed their runes exam and have to do it over - or they won't be allowed to attend the Doom Wolves concert. But their study session ends up putting themselves, and the Doom Wolves, in grave danger.

The real Beatrice Beefcheek arrives at Howlington, and Batty is exposed - and expelled. Freddy has to bring Batty back, figure out how to convince Pincus to let her stay, and avoid a wilderwolf who seems to be after him.