Descent into darkness. Swampland.

 From the rulebook: 

"...Finally, the stairway came to an end in front of a boggy pool, dotted with broken ruins and a few trees. The water nearest the stairs is too deep to wade, but it appears to quickly become shallower further on. If you want to carry on with your mission, there is no choice but to swim through the dark waters until you reach solid ground. Still, it is not a decision you take lightly, for who knows what could be living beneath the surface of the dark water"

The party at the bottom of the broken stairs and with two members intoxicated by the poisonous fumes, seizing the deep they have to swim to reach to where the zombies are waiting for them.

After two turns swimming, most of them reach the shore and engage with the zombies, except the conjurer who is trapped in a sink hole and the archer who is shooting the zombies from the opposite border.

The conjurer is stuck for another turn and the ranger, together with the barbarian and his trusty dog, must deal with all the zombies.

 The archer is attacked by a giant fly which came down from the stairs.

 With only one zombie standing, the ranger investigates and discovers the corpse of a Lorenthian soldier and takes a silver signet ring from him. It starts raining heavily.

Right after the area is cleared, a band of of two gnoll archers and a soldier appear on the left border.

They must get closer to spot the party and shoot at them but then they are charged. Attracted by the noise, another zombie appears on the bottom left corner. The party discovers a treasure and the conjurer runs towards the last clue marker.

 

There he picks some strange flowers that is able to recognise, and after that he runs back to help his comrades that are still struggling with multiple enemies. Everybody is wounded.

 But they succeed one more time, and kill the last enemy it appears on the last turn of the game.

 The group got 43 Experience points.