Alright so the other day my team was speed killing Atheon checkpoint to finish the grimiore, we were playing on easy and finished 15 Atheons before we finished. Anyways... I was using my vex, when we got sent to the past I grabbed the shield, I killed the three hobs easy, oracles were all killed we came out and blasted Atheon, I think I recall killing Atheon with the shield super, and then holding the cleanse on me to celebrate while he died. After a player left to get his alternate again to get the checkpoint going and a few people went to orbit to wait. I stayed and 2 others, and we ran around. 1 of them died, and I went into the past portal. The dead one was 3rd person viewing me. As I walked around the past. The funny thing though... There was no darkness effect on me... At all No going blind, at all Anyways in the past portal I went to the "Atheon spawn area" nothing special. I went to the back door and tried things, nothing special. I went to the future portal that is broken in the past. I noticed the white particles flowing in the machine work underneath the ground. After some time, Times Vengeance effect came over me! I ran to the back door but still nothing. Well the guy who was alive left the game. And then I started to go blind. As it went totally dark I started taking damage and soon died. Then it went to a loading screen, for a good 5 mins (slow 360 network) as we were waiting the dead guy got impatient and left. Then the after screen with stats came up, I didn't get any rewards :/ I'm pretty sure it's a portal puzzle and a team should be able to figure it out. I'm on 360 if anyone is up to try