You hide. The hero icon disappears, and he hides. The enemy sees a caravan approaching and might not attack. Or you can sneak up on the enemy disguised as a caravan. Let the enemy attack – it will be a surprise for them. Is this not obvious?
Added 2 minutes later
or a bonus – if the enemy attacks the caravan, at the beginning of the battle, a BURNING CART flies at him!!! invaluable during a siege:cool: