After leaving Batman in a submerged sarcophagus, King Tut takes Robin and Lisa to the Royal Oil Boiling Room. His henchmen convince him to demand eight million dollars from her rich father, John E. Carson. He says it's to pay off the mortgage on the Pyramids.
Bruce gets seduced into entering Lisa's apartment late at night with the promise of home-baked cookies and milk.
Who needs oxygen? Not Batman!