Clyde the mouse is a guard at Buckingham Palace who leaves his post to take his American cousins on an adventure tour of London. Clyde is a guard mouse at Buckingham Palace whose job is to keep small creatures from creeping through the wall, and he takes his job very seriously. When his American cousins come to visit Clyde leaves his post to take them on an adventure across London. This special facsimile edition brings Don Freeman's 1967 story back to life. Charming vintage illlustrations explore London through the eyes of a very special mouse.