Attention, new bloods! In the past, members of the Thieves Guild proved who the best of the bunch was by stealing the rarest, most valuable treasures they could from some of the most powerful people in Tamriel. We REALLY don't need to attract that kind of attention right now. Seriously. However, the Guildmaster thinks it's important for you lot to hone your skills and distinguish yourselves, so I have cataloged an inventory of one of a kind items that no one will send an army to retrieve. Put them up in the Den as proof of the deed.