With a noisy giant crashing around the kingdom, the Princess in Black uses the Sparkle Signal to call ALL her heroic friends together–for the biggest adventure yet.

The Princess in Black is ready for her snowy playdate with the Goat Avenger and the Princess in Blankets. It’s a perfect day to build snow monsters and battle them for practice. But just when they’re about to wage battle, a huge foot smashes their snow monster. “SQUASHY!”

It’s a giant, and it’s smashing everything in its path! The giant is too strong for the three friends, so the Princess in Blankets has an idea: it’s time to light the Sparkle Signal and summon help. With a rising crescendo of a plot and a delightfully surprising ending, the latest adventure in the New York Times best-selling series features all the Princess in Black’s friends as heroes for the first time.