' Ahoy! Ahoy! Swallows! Ahoy!' Have you ever sailed in a boat or built a camp? Have you caught trout & cooked it yourself? The four Swallows John Susan Titty & Roger return to the lake full of such plans & they can't wait to meet up with Nancy & Peggy the Amazon Pirates. When the Swallow is shipwrecked & the Amazon's fearsome Great-Aunt makes decides to make a visit their summer seems ruined. Then they discover a wonderful hidden valley & things take a turn for the better...BACKSTORY: Discover the real Swallowdale swot up on seafaring & learn all about the adventurous author.