Enter the Rat King (storybook)

Enter the Rat King is a storybook by Maureen Spurgeon, published by Carnival in 1990.

Storyline
When April disappears during mid-broadcast, the turtles, Splinter and Irma go searching for her. When the Rat King shows up, he hypnotizes Splinter.

It is a retelling of the 1987-1996 series episode with the same name.