Where to read
Availability via OpenLibrary.
Catalog
- Year
- 1957
Synopsis
Hurrah! It's holiday time, and the Famous Five are spending it at Billycock Hill. Most exciting of all, they've made a new friend -- a real pilot! But now he has disappeared, with top secret equipment. The Five are puzzled, and concerned, too. Could their new friend by a spy -- a traitor? Whatever his motives are, the gang feel duty-bound to investigate.
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