Running errands from Molly is a prerequisite for getting the "errand boy" achievement. One of these tasks is to search for a mirror. The maps below will indicate its exact location.
Arthur will need to go to Martha Swain's cabin, East of Annesburg and Southeast of Ambarino, near lake o'creagh's Run. Morgan would have to go inside and find the bedroom. The mirror will be in the nightstand next to the bed.
The task from Molly will arrive in the third Chapter in the daytime, between 8 and 20, in the gang camp. There are five tasks in total, and each of them is necessary for 100% completion of the mission.
