Finally, Princess Nell and Purple had penetrated to the djinn king's 
treasury and found the eleventh key. But they had been surprised by the djinn 
himself, who attacked them in the guise of a fire-breathing serpent. Purple had 
transformed herself into a giant eagle with metallic wings and talons that 
could not be burned—much to the surprise of Princess Nell, who had never 
imagined that her companion possessed such power.