Superman #22

In "null," Superman and Lana Lang find themselves caught in a strange crisis when the alien Vartox arrives with a dire warning—Earth is believed to be doomed. As Vartox struggles to make Superman see the threat, he's sidetracked by Lana’s presence, complicating the urgency of his message. Together, the three uncover a hidden truth: the remnants of Vartox’s destroyed world hold the key to saving Earth. In the end, Vartox chooses to leave, seeking a new world where his heroism might be needed.