Hey. It seems I've lost something. When you have a minute, can you help me look for it?
Jeralt dropped something. Search the monastery and find it for him. You should try looking near the captain's quarters that Jeralt is occupying.
  1. Accept the quest from Jeralt.
  2. Find Jeralt's lost item.
  3. Deliver the lost item to Jeralt.
That was helpful. Feels good, doesn't it? If you come across any more lost items, be sure to find their owner right away.