Direct answer
Objectives follow journal display order. Some depend on your choices; follow the active objective in the game.
Result
In a certain cellar located near a nest of drowners, Geralt found a body. Quite curiously, the deceased had not been torn apart by the monsters, but seemed to have died of thirst, having been barricaded in the cellar by some third party. Near the body Geralt found a key and some notes, all of which he took with him.
