Who's Your Mummy? is the sixth book in the Goosebumps HorrorLand sub-series. This story features a protagonist visiting an ancient Egyptian tomb or exhibition, where they encounter a mysterious and terrifying mummy. The plot combines the classic Goosebumps elements of suspense and horror with the ongoing meta-story of the sinister HorrorLand theme park, where all the unfortunate victims of R.L. Stine's stories are being trapped. The hero must survive the creeping terror of the walking mummy while also trying to unravel the mystery of the park and escape before they become permanent residents of the terrifying resort, facing both supernatural creatures and their own rising fear.
