Sounds like a job for the Indiana Jones fridge!

Also, Didact, I wanted to run a character idea by you:
Character was the target of an assassination attempt by a time manipulator who went back and killed the characters parents before he or she was conceived. Instead of erasing the character, they were simply 'removed' from existence. No historical record of their existence exists, no photos, tapes, nothing, but the character themselves did not vanish. They exist as a kind of paradox. Since they were never [i]born[/i] then they can also never [i]die[/i]. (See: Chuck Palahniuk's 'Rant')

The character [i]could[/i] be killed by another person with the powers to do so, but nothing else can kill or damage them. They could jump from a plane without a parachute, hit the ground and literally get up, dust off and walk away.

Obviously a completely immortal character seems a bit OP, but I figured their main challenge would be making sure [i]others[/i] don't die. And as I said, they could be killed by people with certain powers.