So I my city has gold in it's outskirts, I move my gold up and take a gold coin, correct. next turn I invest the coin. and move my gold down one.
The following turn, the city gets destroyed, and I lose the gold, which I no longer have because I have invested it? What happens?
Nothing since I invested the gold already?
Or do I lose another gold, but cannot go negative?
Also, what if my scout is on a gold and I use that to invest?
Thanks,