Near where you killed the Ancient Fungoid, there is a clicky mushroom hidden in a bush at ( 96, -35, -207 ) /waypoint 96, -35, -207. Click the mushroom to receive pure fungus.
In the center of the dark pool in the first room of the zone ( 69, -40, -112 ) /waypoint 69, -40, -112, right click on the small idol to "Pour the fungus you gathered on the idol". Doing this will open the door at ( 105, -32, -116 ) /waypoint 105, -32, -116.
Rideepa is located in front of a squat statue ( 173, -62, -242 ) /waypoint 173, -62, -242 that you need to move to the top of the peculiar pedestal back in the Chamber of Afterlife ( 7, -32, -96 ) /waypoint 7, -32, -96.
Move up to the puzzle at ( -55, -43, -258 ) /waypoint -54.88, -42.99, -258.12. You must click the three blocks in order to open the door behind you. There is no set sequence. When you push in a block and it stays pushed in, that was a correct block. If they slide back out, try a different combo.
Molinap is a drake, sitting atop his treasure hoard at ( -79, -31, -389 ) /waypoint -78.56, -31.14, -388.50.
Clear the assorted ghoul frogloks. Watch out for the roaming froglok knights, they appear to walk a little then teleport, and they move fast. It's unfortunately possible to have one land right on you out of nowhere.
Move three cadaverous body of a cursed Guk froglok to the following locations: