One of the missions you need to complete to get the "errand boy" achievement is to search for the book "Shrew in the fog" on behalf of Hozia. According to the map, the book can be found at the Hagen Orchads house in the Bayou district, located Northwest of Saint-Denis. It will be on the coffee table.
To start this mission, you first need to get a task from Hozia. The assignment will be given in the camp of Arthur's gang, in the second, third, or fourth Chapter. This will happen in the daytime, between 8.00 and 20.00. The main condition is that the task must be completed before the end of the fourth part of the game.
