Publisher's Synopsis
'Five on a Secret Trail': The Famous Five go camping and pitch their tent near a ruined and seemingly abandoned cottage. When Anne hears strange noises at night the others don't believe her. Until they see the ghostly lights. Is the cottage really haunted or is there another, equally sinister, explanation? 'Five Go to Billycock Hill': It's holiday time at Billycock Hill and the Famous Five make new a friend - a real pilot! But when he disappears with top secret equipment, the Five begin to wonder if their new friend could be a spy or worse, a traitor. Whatever his motives, the gang feel duty-bound to investigate.
