The unicorn and the lake
by Marianna Mayer ; pictures by Michael Hague.
- New York : Dial Books for Young Readers, 1987, c1982.
- [32] p. : col. ill. ; 27 cm.
- A Pied piper book .
Reprint. Originally published: 1982.
When a serpent poisons the lake where all the animals drink, only the unicorn has the power to save them.