Here you go.
Subject: Frost Stone *spoilers*
if you have I think 260 buffed jump you can take a shortcut, jump
up on the torch that you're facing (over the doorway) when you
enter, use the rock if you have to. From there turn left and jump
up onto that walkway, turn around and follow the path (going back
toward that torch), it turns around, then it'll cross back over the
main room. Up a ramp and to a jump room with platforms, there's a
switch to the right to open a door to the far left, behind the door
are 3 dark revenants and a revenant, who conveniently can be lured
into the pit with the exit portal, after that everybody sits around
eating smores and collecting their frost stones.