Troy is impressed with the party and wants to hire them for a job: he has a shipment of crossbows that needs to be sent up from Fishguard to Caldwell. (It was already paid in full.) The trouble is there's a bandit issue lately around the road. A ferry up the Draig River isn't an option due to rapids. Troy offers each person 25 gp to take the job and another 50 gp if the delivery is made successfully. He will not accompany them on the trip. The shipment includes a manifest (6 light crossbows, 4 heavy crossbows) as well as a receipt to be signed.
The road goes past the Temple of Ilios. The party will discover it is besieged by zombies and skeletons. (4 skeletons, 4 zombies is upper end of Medium. One or two more is Hard.) The priests of the temple are holding, but they're trapped. Clearing the way to the entrance will grant them a reprieve.
If the temple grounds are searched, a black gnarled staff will be discovered in the graveyard. Its presence has defiled the land and caused the undead to swarm. Getting to the staff should require more combat.
Once the staff is retrieved, it can be taken into the temple to Ilios's altar where it can be destroyed. Cleaning up any remaining undead after that is trivial.
Searching the temple grounds further (DC 16) may also uncover a bone pipe. The bowl of the pipe is carved to look like a skull.
Pierre Nevar, traveling Tabaxi merchant, has a wagon that often breaks down as he's assaulted by bandits or wildlife.