Fire Spout Section
You'll find yourself at the eastern end of a long corridor. Your objective here is to get to the western end. However, unlike some similarly-themed puzzles in the Shadow Ruins, this one is pretty easy. Simply press the SHIFT key at the templar knight statues (#1) to briefly raise the platforms (#3) to shorten the gaps so you can jump to the west. Complicating matters slightly is that fire spouts line the walls and spew out fire every few seconds, but the fire spouts do little damage, and they're mostly there to distract you rather than hurt you.
From the walkthrough discussing the final part of the shadow realm ^^^
I click E and also alternatively shift to activate these statues which are triggers for theplatforms, but it never works