Unfortunately the Eerie Go Round does not come with a power adapter. Yes, there is a spot for it inside the box for a power adapter but the piece does not come with a power adapter. We are very sorry for the confusion.
Underneath the Eerie Go Round you can add 3 AA batteries instead of having to use a power adapter. You can also purchase a Lemax Power Adapter from a Lemax Retailer. Please only use the following Lemax Power Adapters. #74707, #74275 or #74270