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I don't know why, but half of my message didn't appear. So, I'm writing from where I left off. You built a tavern, but there are no elves available for hire, or perhaps not even any at all – that's a bit far-fetched. However, the fact that there's a mage hero and another hero, Irene, with 6 or 9 creatures (I don't remember exactly), is a perfectly plausible scenario, and I doubt they'll be of much help. In the end, we didn't achieve the desired result, and we wasted a day.
The comparison you suggest won't yield anything either. You have a city level of 7, and I have a city level of 7. You have a tavern, and I have minotaurs. From everything that's been written here, we can conclude that once you leave the city, you don't return to it. But what about magic spells that require you to return? If the starting city level is 3, and the tavern is already built, then, of course, you can check who's available for hire and decide if you need them. But I want to emphasize that I'm talking specifically about the first week.
The main point is that not hiring a second hero in the first week doesn't necessarily lead to an inevitable loss, just as not capturing a mine doesn't. You seem to have a very narrow view: if you don't hire, you've failed the mission. And if it's impossible to build a tavern in that city at all, then, according to you, is it impossible to complete the mission?
Of course, you need to hire heroes, and not just a second one, but a third and a fourth. No one is arguing about that.