After a vacation in Italy, the Strega-Borgia clan arrives home to a shocking discovery: their faithful butler Latch lying comatose on the front doorstep, reeking faintly of sulphur. Horrified and troubled, Titus and Pandora suspect this may be an omen of bad fortune, but both are soon distracted by their own problems.
Only Nanny McLachlan realizes the truth: Whatever it was that came for Latch is coming back. And when it does, will she alone be strong enough to protect the family?