After the first week of raiding I had no idea how the keys worked, so I kept my 3 raid keys: engine key, conduit key, and the pipeline key in my inventory for next week. After running the raid this week, I abstained 3 more keys and my raid team mentioned hidden chests underneath in the underbelly, and were willing to help me abtain the loot inside these hidden and mysterious chests. After defeating Emperor Calus and going going down the elevator to collect my sweet reward in front of all the robotic Emporer Calus duplicates, I got the very first peom of the "Rat King" quest line as a random reward. I was very excited and shocked to abtain the beginning of thequest line for I had not started it yet on the moon Titan. When I checked my inventory later throughout the day, I found that all my keys were missing. What happened to my keys?!?! Did the Rat King send his minions after me and steal my keys? Is it a bug? Where have they gone? Bungie, I hope you can help me solve this mind-twisting mystery and bring balance to the looting world of Destiny 2.