Best friends Ronnie and Jack are headed away to sleepaway camp for the first time ever. Camp Foster promises all of the outdoorsy activities that Ronnie has so far managed to avoid: ropes courses, scavenger hunts, kayaking on the lake. Ugh. But she can do this. As long as she has Jack.

As it turns out, an old manor in the woods is the kind of place that’s crawling with secrets. Secrets like a mysterious gwishin haunting the grounds, a blood-red scarf wrapped too tightly around her ghostly neck. And a witch-hunting dokkaebi intent on finding and silencing the last Rhee witch. And the strange habit all the counselors have of rhyming when they speak . . . just like Ronnie has begun to do lately.

For a girl who wants everything to stay the same, nothing is scarier than all the changes Camp Foster brings. New friends. New foes. Souls with unfinished business. And, possibly worst of all, revelations that disprove everything Ronnie knew to be true.