Later, Ian McNee recovers the crown from Nagala. Nova is sent to Mars by Steve Rogers to investigate the halting of Roxxon Energy Corporation's mining operations. While fleeing from unknown assailants, he flies into an artificial mountainside, where he discovers, at the top of an ancient staircase, an artifact similar to the Serpent Crown, referred to as the "Thorn Crown". Despite warnings by Worldmind, Nova puts on the crown. It is later removed by Steve Rogers and taken away by its guardian, the Archon.