To repay her father's debts, Mirabelle promises the King that she'll spin his straw into gold. An evil troll agrees to help her for a price. Now, Mirabelle must repay an even greater debt, unless she can guess the terrible creature's name.

Late one night, Sir Charles Baskerville is attacked outside his castle in Dartmoor, England. Could it be the Hound of the Baskervilles, a legendary creature that haunts the nearby moor? Sherlock Holmes, the world's greatest detective, is on the case.