ToME: the Tales of Maj'Eyal

my archmage is dead just after the wildfire was unlocked, when i load my previouse game(i used to backup my save files), i found i can't unlock the wildfire again, so my 33lv fire-archmage lost his wildfire for ever....
but this ability is avlaible when i build a new character!
Is there any method to help my archmage?

sorry for my poor english

The character that unlocks wildfire never has access to it. It should now be available to new archmages, though.