High Quality Content by WIKIPEDIA articles! "Are You My Mummy?" is the twelfth broadcast episode of the animated television series Phineas and Ferb. The episode sees stepbrothers Phineas and Ferb going to an Egyptian-themed theater where they become inspired to befriend a mummy they believe is being kept in the theater basement. They confuse the mummy for their sister Candace, who was accidentally wrapped up in toilet paper. Meanwhile, Dr. Heinz Doofenshmirtz tries to blow up a beaver dam in order to make his property beachfront.