Avatar gnashed his teeth inside his blind. "He'll pay if he's seriously harmed one of the academics or Dick", he thought. Frustrating as it was to allow his colleagues and teammate to be attacked and do nothing, Avatar knew this was better.
"He might be crazy, but he's smart", the superhero thought. A surprise attack on the team, and he knew he could then loot the tomb at his leisure. But now that he'd hit the tent and the plane and not found the team, he'd probably figure out they were in the tomb, waiting for him.
Avatar mentally cursed and hoped the rest of his team held discipline enough not to break the ambush and try to rescue the others.