Mary-Kate and Ashley have a new telescope. Their father bought it so they could learn about the stars. The twins have a better idea, though: They're going to spy on their neighbors

But the spying turns serious when Mary-Kate sees something she shouldn't. Something that spells big trouble for the twins...

All Editions

Paperback, 6th Edition

ISBN13: 9780007144761

HARPER COLL CHILDREN, 2002

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