It's 1932, the height of the Depression, and Butter O'Bryan and his friends have another mystery to solve.<br/>The Very Small Castle is home to Butter O'Bryan, his father, three aunts, friends Gil, Olive and Tish, and their dog, Woofer.<br/><br/>But now there's also a monster at the castle!<br/><br/>When glamorous film actress Delilah Divine vanishes in the middle of filming on Howlers Beach, the police suspect her co-star who plays the movie's villainous monster ...<br/><br/>But soon more strange disappearances begin to occur, leaving the police baffled.<br/><br/>It's up to Butter to solve the mystery of the vanishing film star, but can he crack the case before it's too late?