This new Monster High character is double the trouble -- and the clawesome fun! The two-headed daughter of the Hydra Peri and Pearl are twin sisters who may have their own minds but not their own bodies. Two heads a serpentine tail -- that allows doll to stand on her own -- and webbed accents are monsterrific details. Glow-in-the-dark accents are creepy cool. Colors and decorations may vary.