When his sister goes missing at Halloween Horror Night, twelve-year-old Rusty must find her. While searching, he meets a ghost in the corn maze and finds a mysterious carousel. The ghost knows where Rusty's sister is but won't tell unless Rusty locates a missing carousel bell.

To find the bell and discover who is responsible, Rusty must ride the Haunted Carousel with his magic brass ring that takes him on time travel adventures. This carousel is unlike any other carousel he's ridden, and it includes his greatest fear: a giant spider.

It will take him on the spookiest adventures of his life. With time running out, he must solve the mystery of the missing bell and find his sister.