 Giles agrees, on the condition that Cunningham first grant him immortality.Unbeknownst to Cunningham, Giles rigs the procedure (as he no longer wishes to live without his fiancé), removing the phosphorus stones from the spotlight.As Cunningham attempts to gas Giles to death to summon his asphyx, he realises the equipment is not working, turns off the gas and turns on the oxygen to save Giles.