Ava (and Piggy) are back with a brand-new adventure! Ava proved she's a fierce monster slayer after defeating the ferocious basement monsters to save her favorite stuffed animal, Piggy, in Ava the Monster Slayer: A Warrior Who Wears Glass. Now, Ava must gather her courage once again as she gets ready to attend an overnight camp for the first time. She and her cousin, Sophia, are scared of being away from home, but they take comfort in Piggy and Sophia's Teddy being by their sides. After an evening hike, Ava and Sophia return to their cabin and discover Piggy and Teddy are gone! The girls refuse to leave their beloved stuffed animals outside overnight and quickly devise a rescue mission. Ava knows that they'll have to be fierce when they face the monsters lurking in the dark woods. The girls don't have weapons to help them confront the monsters (Ava's warrior sword is at home!), so they make their own using rubber bands, a hanger, and candy. Not even the growls or the stinky smells of the creatures in the woods are going to stop them in their quest. Ava and Sophia are determined to rescue Piggy and Teddy-no matter what.