Exactly, the boots of swiftness. I'll try deleting all the maps and see what happens.
Added after 2 hours 43 minutes
I got through it, but the game crashed when I gave the ring to the succubi.
Added after 16 hours 16 minutes
Okay, I replayed it, and it seems to be fine now, I'm moving on. I reached the point where I need to find the cloak and staff; there are too many battles, and my army is running out.
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