A sleepy Princess in Black takes a much-needed vacation and rides her bicycle to the seaside, where she plans to nap in a hammock, but her peace is disrupted by a roaring sea monster.

When a goo monster crashes the science fair, the Princess in Black is on the job, and with the help of the Princess in Blankets, sets out to save the science fair.

"Could a horde of very cute but very hungry bunnies be the toughest foe yet for... the Princess in Black"--Back cover.

Noseholes and elephants! A pet-eating monster interrupts a perfect playdate with Princess Sneezewort . . . but who is that new masked avenger? Princess Magnolia and Princess Sneezewort have plans . . . mysterious plans, like a princess playdate! They dress-up slam! They karaoke jam! They playhouse romp and snack-time stomp! But then a shout from outside Princess Sneezewort's castle interrupts their fun. It's a monster trying to eat someone's kitty!...

"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...