Mona the Vampire S02 E05 Flea Circus of Horrors / Shadow of a Doubt

A) Fang got fleas! But the worst is that the fleas made a circus at Mona's house! B) Mr. Shawbly is running faster than before, he can run freely and... he doesn't has a shadow. How will Mona and the gang reunite Mr. Shawbly with his shadow?