Cairo is the capital and largest city of Egypt.
After Holiday went AWOL, the team (including Rex, Bobo, and Six) went out to search for her. Along the way, they ran into Black Knight and a mysterious undead pharaoh named Gharun Set. When Gharun Set tried to take matters into his own hands, he was believed to be evil. However, his plots were for good and not evil, and he died due to his ancient age.
- 304. "Riddle of the Sphinx"