"This edition is only available for distribution through the school market"--P. [4] of cover.
Originally published: San Diego, Calif. : Silver Whistle/Harcourt Brace, 1999.
Summary
When her eccentric Auntie Claus leaves for her annual business trip, Sophie stows away in her luggage, travels with her to the North Pole, and discovers that her aunt is really Santa's sister and helper.