UPDATE: IT IS CONFIRMED THAT THERE ARE TWO CHESTS IN THE LAMP STAGE. ONE IS BEHIND A RANDOM DOOR AND THE OTHER IS INSIDE A DOOR ACCESSIBLE BY JUMPING UP ON A ROCK. HERE'S THE KICKER, EVEN THOUGH NEITHER ONE "DESPAWNS," YOU CAN ONLY RETRIEVE LOOT FROM ONE. AFTER THE BRIDGE IS ACTIVATED AND YOU RECEIVE LOOT, AS LONG AS NOBODY GOES TO FAR YOU MAY STILL WALK BACK AND EXPLORE THE MAZE WITHOUT THE DEBUFF. THIS LEADS ME TO BELIEVE THAT YOU MAY ONLY RETRIEVE LOOT FROM IT UPON COMPLETION OF A CHALLENGE OF SORTS. PERHAPS NO LANTERNS ACTIVATED? SECRET 1: THE FIRST SHARD CHEST IS IN THE FIRST AREA OF THE GAUNTLET BEHIND AN AUTOMATIC DOOR. EDIT: THE FIRST GAUNTLET CHEST WILL BE BEHIND ONE OF SEVERAL DOORS ON THE LEFT HAND SIDE. FOR YOUR CONVENIENCE, THE RANDOM DOOR WILL BE ILLUMINATED, REVEALING WHICH DOOR THE CHEST IS HIDDEN BEHIND. *Credit to xXsMiTh76Xx for the light-up door SECRET 2: IN THE SECOND AREA AFTER THE FIRST BRIDGE, TAKING OUT YOUR GHOST OPENS LOCKED DOORS. EDIT: GATEKEEPERS DOES NOT REQUIRE A PARTY OF 6 TO CROSS. IN OUR ALT RUN, WE BROUGHT 4 ACROSS, WIPED THE REMAINING 2 AT THE STARTING POINT, AND STACKED AT THE DOOR. THEIR DEATHS SPAWNED THE ADDS, AND THE ADDS' DEATHS SPAWNED OUR LOOT. EDIT: IN THE DEATHSINGER ENCOUNTER, TAKE DOWN THE WIZARDS/SHRIEKERS AND GTFO. REGROUP UNTIL SHE BEGINS HER LITURGY, AT WHICH POINT SHE WILL BE STATIONARY AND TAKE MORE THAN ENOUGH DAMAGE TO KILL HER OFF (LITURGY INCREASES YOUR DAMAGE ON HER). DO THE "KNIGHT DANCE" AND GOGO GADGET GJALLAHORN! ENJOY YOUR DEATHSINGER BOSS LOOT IN THE FORM OF PRIMARY, SECONDARY, AND HEAVY AMMO. I've shared what I know, now pay it forward!