Conrad Anker covered his body in scree. Subsequent expeditions have been unable to locate it. There's speculation that it was secretly removed from the mountain for political reasons.

Political? That sounds odd.

[1] https://www.theguardian.com/world/article/2024/jun/01/it-doe...

The location of Mallory's body was unknown until 1999. The location of this one has been known pretty much the whole time.

I think another climber spotted him in the 1930s, but didn't mention it, because he didn't want to have a media circus.