Session 12.5 in Rise of the Runelords in 5e

Once again Ulfar was the star of this encounter changing into a giant Octopus and pinning creatures down so the rest of the party could encircle and eliminate these creatures pretending to be the Foxgloves.

Searching the townhouse unearthed a few things, a nest egg from Aldern holding money, legal papers as well as the deed to the townhouse itself. The deed indicates that the Foxglove family only financed two -thirds of the manor's construction So years ago; the remainder was financed by a group called the Brothers of the Seven. The deed also bears an unusual clause near the end that
indicates that after 100 years , ownership of Foxglove Manor and the lands within a mile "around and below"reverts to the brothers.
In a thin Ledger, nearly a dozen entries from over the past 3 months labeled as "Iesha's Trip to
Absalom," each indicating Foxglove was paying someone referred to as "B-7" 200 sp a week for her "trip," dropping off the payment every Oathday at midnight at a place called "the Seven's Sawmill."

The group left in search of the Seven's Sawmill, they found it to be on the Inlet Isle of Kyver's. (number 18 on the map below)

They arrived to find a tall building, support on large posts over the Yondabakari River.

The main floor was absent of anyone so the group went up towards sounds of people working, operating saws, winches and other wood cutting implements. They encountered 4 works, that quickly donned masks, drew viscous long straight edge blades and attacked the group as intruders.

Remarkably no one came to investigate the loud disturbances that this battle made, but being in a loud sawmill the party figured the noise covered the expected fighting.  Fate was not looking out for them, one of the cultists on the upper floor witnessed the on going fight and after a few rounds of combat organized the other 3 with him to go down and engage the group from both sides of the fight.

After getting ambushed by a second group coming down from the floor above the party started using more offensive magic and the druid once again shape shifted into the creature I hate the most.

 After finally killing eight cultists they climbed all the way to the top level, this time they had the jump on the bad guys, killing 2 cultists quickly and the main villain showing himself as a Judge no less, the elven cleric dropped a  Insect plague and the parties cleric replied with a fireball. They sawdust in the room exploded causing blindness and a fire to spread rapidly within this room.