When the Werewolf Howls (DISCONTINUED)

Brian and Brianna are twins they are both 12 years old. They both love playing tennis but Brian has had enough with losing. He orders a strange substance online. It is meant to trick Brianna that she is turning into a werewolf. He gets the idea from a rumour that's going around the school. When Brianna finally believes him she gets so mad that it was a prank. When he actually starts turning into one will Brianna believe him before it is too late.