Traveling down river, we get attacked by more river bandits (1200 xp,
70 gp), taking 5 prisoner (4 escape) whom we then send down to Bargewrite
authorities.

In the morning, bugbears attack (2100 xp, 50 gp in gems, two potions of
healing, scroll of goodberry), bag of holding.  Only one is killed, but
we can't really turn these over to human authorities as they'll likely
just be killed.  Instead, we strip them down and turn them loose, with
an admonition to not do bad things.

We finally get to the monastery and drop in on the lich to chat.
He offers us a map of the ruins.

Heading out, we drop by the tower of fire and finish cleaning it out
(5050 xp + 1750 xp for finishing the tower, two fire opals worth 50 gp
each, scroll of flame arrows).