You can expect a result of 13 from you. You're already one day ahead. I don't know what to expect from you next :)

I played all day and achieved this so far.

On the eighth day, the Nature hero (Melody), who was just hired in the free Tavern in the Chaos lands, captured the Chaos Fortress (Viridwell).
After that, Sandro, loaded with artifacts and potions, immediately sailed to the Fortress of Life. He has the following artifacts: (Sextant, Amulet of the Planes, 8 mana potions, Boots of Swiftness 2, armor, sling, Cross of Valor, shield, two crystals, acid 1, horseshoe, green potion, sword).

Solmyr with a vampire landed on the shore near the Fortress of Nature, accompanied by a fairy and two poison ghosts. They have poison, Boots of Swiftness, shield, sword, Dispel Magic, and gas. This should be enough to defeat Nature :D

Now, the most important problem is who to send to the Fortress of Barbarians.
In principle, you can hire another hero in the Fortress of Chaos and have time to put him in a boat, equip him with potions, and give him the Apprentice's Book.
In general, I'll think about it; there are other options as well.

By the way, the eighth day is still not over; it's still in development.
And how are you doing, Zhel? How far have you sailed?

I didn't take the Forge, by the way; it went without any problems.
The sea provides and sustains; there's enough money for everything.
I don't deny Sandro anything.