Marvel's Midnight Suns

This is for solving the puzzle at Agatha's Altar with the four Elemental Rods.
The Fire rod can be found in the Chapel part of the Abbey.
The Water rod can be found under the bridge by the pool nearby the training grounds.
The Earth rod can be found inside the Hunters tomb (you need to have progressed far enough to have the OPEN word of power to open the door into the tomb).
The Air rod can be found past the archway that requires the OPEN word of power that is near Agatha's altar. OPEN the archway and look for the shrine that's not too far in (on the right) to find it.
Once you have all four rods go to the alter and face it head on.
The Fire goes into the pedestal on the far right.
The Water goes in the pedestal on the far left.
The Earth goes in the pedestal on the right.
The Air goes in the pedestal on the left.

As said above, you need the OPEN word of power to get all the rods. I got this about 5 hours into the game.