Almost sure it's a bug(or a very nasty random feature, hehe).

[Kristoffer O]

Originally posted by Lothiack Drake:
Get a mercenary that appears in the Hall of Fame dead. Cast Ritual of Rebirth to make him live again. Give him any item, then try to get it back.
I get the same message I got when he was a Mercenary. He must be very Vain, I revive the guy and he don't give me MY itens back? How ungratefull of him.(sorry for the typos and "alien" words, hope u got the mean).

By the way, why can't I choose the Hero I will revive? I just can't revive the hero I want. I got 3 dead heroes and cast Ritual of Rebirth 5 times and still not getting the 3rd one alive. :-(

Thanks for reading.

Sure sounds vain, but you know mercenaries

Did you cast 5 rituals during the same turn? The spell probably targets the first dead hero you have on the HoF. Casting five rituals simultaneously will target the same hero. One casting each turn should work better.