Want the chaperone by the next weekly reset ?

if you complete 9 out of the 10 steps in the Jolly Holliday quest ( the last step, step 10 is to wait just like with the eldercipher ) this week, you will be able to grab the chaperone (exotic shotgun) next week. The quest is aquired from Amanda Holliday.

Here is all steps: http://db.destinytracker.com/quests/868815953-jolly-holliday