Session 13.5 in Rise of the RuneLords in 5e

They quickly found a guide to take them to the Irespan and once they got there stopped and stared around total lost with how to proceed? They saw Ravens here and there, which one did they need to go to? They needed to find messenger birds not wild ones.
After going into a tavern and getting laughed at by the locals the characters began getting desperate,  then it hit Charles as he poured over his character sheet, Path of the Totem Warrior gives Spirit Seeker, which allows beast sense and speak with animals. A short conversation with a Crow, as he was offended to that Charles thought he was a Raven, they found the messenger birds they were looking for, they had been nesting at the old clock tower, an abandoned tower, the locals called it The Shadow Clock.

They entered the building and looked up at the vast empty tower with just a staircase circling the interior, six store rooms on the main floor faced them. They searched the rooms on the main floor and one of them a large scarecrow emerged.

I was thinking they would have a difficult time with the golem dressed as a scarecrow but once they took the mask off and made a quick roll to find out what it was, the nature 20 told them all they needed to know and magic made short work of it.
Once the search of the main floor was done they worked at climbing the tower from the inside, the tower itself was over 200 feet tall, the long ascend.
Into the third floor climb the bell began tolling and was getting closer, the rope had been cut! It was screaming down at them, Charles and Ulfgar took the damage and all fell to the floor below.
After wasting magic to heal themselves, Ulfgar changed into a giant spider and Toucan mounted him and began climbing the tower from the outside. Charles and Tamar began the long ascend once again keeping an eye on the remaining tower bells.
 Ulfgar entered the tower at the Clock face as he ascended the tower with ease as a spider, they saw 2 faceless stalkers getting ready to unleash a second bell at the other two party members trying to jump the gap that the first bell made.

   Ulfgar was shoved off the edge but caught the edge 100 feet down but still pasted Charles and Toucan running up the stairs, Toucan went into unconsciousness fighting the last stalker on his own and was rescued by Ulfgars timely appearance.