I think I know what happened.
I set my mage to forge a thistle mace. Went from 24 nature gems to 19 nature gems (without knowing). Then I said, "Hey, lemme see if the forge bonus works for Mandragora" so I check my gems. 19. Arrite. So I selected the mage to construct Madragora. Then I had 14. 24 - 10 = 14!!!
daaaaamn....

Do not make fun of me!
edit: Kristoffer, you should have said something instead of going berserk, heheh.
[ March 16, 2004, 21:07: Message edited by: Argitoth ]