First publication (one of several printings). Norton at her best; a group of children fight their way to safety after an alien invasion.  As with all early Norton hardcovers, copies without library stamps / markings are quite scarce, while former library copies are more common.

Dark Piper

andre-norton

Harcount Brace World

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Books by Harcount Brace World

See the best price to sell, buy or rent books by the Harcount Brace World publisher. BookScouter helps to compare book prices from 25+ online bookstores and 30+ buyback vendors with a single search.

Dark Piper