There once was a Heep-heep from Zrak

"There once was a Heep-heep from Zrak" was a poem. It referred to a Heep-heep—a creature from Zrak that possessed four legs and a reptilian head—that became stuck in a crack, and the more it tried to escape, the more it got stuck.
==Behind the scenes==
The Heep-heep was introduced in a poem in Monsters and Aliens from George Lucas, a book published in 1993. Lucasfilm employee Leland Chee, who maintains the Holocron continuity database, has indicated that information contained in the book is non-canonical.
==Sources==
*Monsters and Aliens from George Lucas 
==Notes and references==
Category:Poems