In Search of the Castaways, or The Children of Captain Grant is a novel by Jules Verne that follows the adventures of a group of characters as they search for Captain Grant, who has gone missing at sea. The story is filled with exploration, danger, and the spirit of adventure.

The novel tells the story of a group led by Lord Glenarvan who embarks on a perilous journey to find Captain Grant, whose children are desperate to locate their father. The quest takes them across the oceans and to various lands, facing numerous challenges along the way.