The stone from the Were-sharks previously, was identified as definitely a sending stone. This is a special stone made to detect a target, command word "Sylphina Mistwhipser". To attune it to a different person, it requires a Vial of Blood and some other part of the body of the person to be tracked.
10th of Sintalis 2642 Continued: Most people left the ship at port. I stayed behind to protect and manage it. I convinced our passengers to help repair the ship for some pocket change, and Catarina decides to stay on. Daji eventually gets back, and briefly tells me about his arrest and release. Something is odd about these "Mother Goddesses" that they worship here. I go out and gather some rumors: Lost Tribe of the Prime mother: Sealed away an evil, then disappeared. Often used as a boogeyman for some common folk, others practically worship them, tons of rumors. After returning to the ship, a deep fog rolled in, and it appeared that Ursula was missing. We went and brought her back to the ship. On our way back, the fog started to solidify and harm us.
11th of Sintalis 2642 (Short Rest 1): People dealt with the wreckage from the fog. We briefly talked to the port Aquapass authority, and gave him the aquapasses from the were-sharks. Myself and the druid finished repairing the ship. I did some gambling with some random person on the docks for coppers, Trevor Quickfingers. We apparently ended up starting a quest from the town to hunt down the hag while I guarded the ship.