It might not soon enough, given the story.

"Set decides he's going to give himself the advantage," Steven continued, still thrilled at the chance to talk about one of his favorite subjects. "He sneaks into Horus's room at night, has a bit of fun. Thinks to himself well that's done it then. Next time everyone's together I can prove it's me who should take over because - er -"

Amazingly Steven stopped being distracted enough to remember there were children around. "Erm. Well he left proof, didn't he? And where it was left, that'd prove which one of them was stronger, right?"