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 be a spy - a traitor? Whatever his motives are, the gang feel duty-bound to investigate...
GoodReads: 3.84 of 5 stars - 3,069 ratings
Book Version: 244 pages
ISBN: 340796308 (ISBN13: 9780340796306)
five go to billycock hill