Lamb found their tasks returning the Lamb's souls to Yngya fulfilling, and immensely satisfying--helping those who were unfairly slain eased their heart not only as God of Death, but also as the Last Lamb. They came to be quite good friends with all in Woolhaven as well, and took great pleasure in cleaning the dilapidated town up with aid of their Flock (minus the Bishops and Narinder. Lamb rightly suspected that they would not be a welcome sight in the town, as Lamb had yet to explain all that happened after they usurped Narinder.)
But as they traveled through Ewefall and The Rot...something wasn't feeling right.
The Rot's very presence needled at Lamb, in the back of their mind. At first, they dismissed it as simply a reaction to their new godly duty and The Rot standing in defiance of it.
...but it persisted. And grew larger.
And the more souls that Lamb returned to Yngya, the more their senses screamed at them that something is wrong, something is WRONG...!
And then Lamb revived Sariel, and that's when they knew there was more to what ever plan Yngya and her disciples told them.
Yet again, they were walking straight into a god's trap.
...and yet the souls of Lambs still wander Ewefall...
...and so, the God of Death squared their shoulders and continued forward anyway.
Lamb's arc in Woolhaven reflected some of my experience playing the DLC itself. I knew something wasn't right the MOMENT The Rot came into play, but I couldn't quite put my finger on what until Sariel gave his whole opening schpiel and I realized "oh. So that's where we're going..."