Look for the guard captain
Among your contracts is something personal. The guard captain of Denerim apparently wronged Marjolaine somehow and she wants revenge. She is taking care of it herself. It will be interesting to see what she cooks up.
Pity the man, whatever comes.
Walkthrough
This quest can be affected by the other quests that you partake on in the Market, Stealing in the Market, Kill the Loose Tongue, Defeat Bann Perrin's Guards, and Find the Mages' Cache. You can assist Marjolaine in humiliating Guard Captain Eams by placing the Suspect Underthings, Jovi Merice's Corpse, or the Fenced Tevinter Antiquities, the Fenced Historical Costumes, and the Fenced Fereldan Jewelry either next to him, or on his person. You can put only one item, or all of them, it is your choice.
Result
Depending on how many items you put on Guard Captain Eams, Marjolaine will be impressed, amused, or just interested. The more the better. She had a special plan for the Captain, and if you assisted she will like it. Placing all the items (save the mage's ring) upon his person will unlock the Vendetta achievement.