Delve into the Dark Arts of with this exclusive set that includes a tiny book filled with facts and unique insights into the darker side of the Harry Potter™ films and a collectible Dark Mark enamel pin. NOVELTY TINY BOOK: Completely legible, printed in full color, and encased in a slipcase with a ribbon marker, the novelty tiny book on the Dark Arts is filled with fun facts and unique insights on the darker side of the Harry Potter™ films—from basic curses and jinxes to Dark creatures like the Basilisk and the Dark Lord himself. COORDINATING PIN: The set includes a glow-in-the-dark enamel pin of the Dark Mark that can be worn or added to a tote bag or lanyard to show your dark side.