The trolls will be dealt with another day. Having silenced the alarms in the slums, the party collected the commission and set sail for Sokal Keep.
Searching outside the gates revealed an elf skeleton and parchment containing several words of Elvish.
The party defeated the first random encounter – 2 giant scorpions – and camped for the night. Fortunately this gave Torel a chance to memorize 2nd level cleric spells, which I had neglected to do after reaching level 3.