Karrag has escaped, and now we're going after him. The Captain mentioned a gallery on the lower level and that there are many passages there, including secret ones. I think we should take a look ourselves...
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We hadn't taken a single step when we were attacked from all sides by gnomes in masks. Our squad was stronger, and we managed to defeat them.
P.S. At the beginning, I decided not to take everyone, but only the most useful and strongest.
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While scouting the hall (gallery), we discovered two hidden caches of gold.
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The second cache.
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Next, we encountered the first fort with strong defenses. We fought them for a long time, but we eventually managed to break through.
P.S. There were three opponents at once: black, green, and purple.
P.P.S. Here, I finally decided to hire reinforcements.
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After that, we had to split up, and one group went south, where another gnome fort with decent defenses awaited them.
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The second group went north, where there was a small camp.
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After overcoming the first obstacle, the northern group reached the fort. It was also well-defended.
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When we cleared it out, we decided to take a look around. Besides two strange runes on the floor, we found four chambers with captive gnomes. After freeing them, the group moved on.
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Further on, we were met by huge spiders. Apparently, Karrag and his army hadn't ventured into this part of the tunnel. After destroying the insects, we found a book with a spell. The Guardian recited it, and the runes were activated...
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...and a door opened in the southern tunnel, where the first group had captured the fort and established a foothold.
The teleporters led to the southern fort, where the first group was located. Some of the gnomes went there, while the rest continued on.
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After exterminating all the spiders, I divided the group again, and the wounded soldiers went south (to the others) through a secret passage that we found in the spider's lair, while the rest continued on.
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At this time, the southern squad was attacked by ghosts and shadows.
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While the southerners were fending off the forces of darkness, the northern group traversed a long tunnel and reached a small necromancer fort. It was from here that the shadows, ghosts, and skeletons were attacking.
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Then, the southern squad began to break through to the northern one, surrounding the necromancer and his army.
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After clearing the right tunnel, the squad moved into the left one. It wasn't difficult for us to blow up the gate that blocked the way, and after a few minutes, we were already fighting new undead.
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There was another fort and a second necromancer here.
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After clearing the room, we went further, now heading north. There, we finally caught up with Karrag. He was guarded by large bone warriors, who turned out to be quite strong. I didn't want to waste time with them and immediately headed for the gnomish lich. With the help of Ratel, I killed Karrag and freed the Kal-Karth clan from the oppression of the dark lord.