Linda plays a role in the quest Buad Blood, directing you on who to ask about suspicious folk moving about at night.
If you choose to side with Buad and confront Antumbra, both Linda and Buad assist you in the fight.
"Oh, why did I have to lose my coin purse in the chapel? I just hope I can sneak back in before Father Dominic 'collects' it."
Mindreading Linda spawns her misplaced coinpurse in the chapel beneath the pulpit.
You can either return it for 100 exp, or keep it for 100 gold.