National Network for Equitable Library Service

In this story without words, "a king emerges from a hidden door in a city park, startling two children sheltering from the rain.

Using a red marker, a young girl draws a door on her bedroom wall and through it enters another world where she experiences many adventures, including being captured by an evil emperor.

Just as medicine is not a science, but rather an art--a device, practised in a scientific manner, in its best manifestations--time-travel stories are not science fiction.