In Search of the Castaways (French: Les Enfants du capitaine Grant, lit. 'The Children of Captain Grant') is a novel by the French writer Jules Verne, published in 1867–68. The book tells the story of the quest for Captain Grant of the Britannia. After finding a bottle the captain had cast into the ocean after the Britannia is shipwrecked, Lord and Lady Glenarvan of Scotland contact Mary and Robert, the young daughter and son of Captain Grant, through an announcement in a newspaper. The government refuses to launch a rescue expedition, but Lord and Lady Glenarvan, moved by the children's condition, decide to do it by themselves.