In Amnesia: The Dark Descent, are these related to/the shadow?

*SPOILER ALERT*

A few things I've noticed in the game, I'm wondering, are they The Shadow, or are they more of Alexanders alchemy abominations? I.e.: The trees falling when you're on the window ledges, the being that chases you when you escape from the prison, and the red slimey stuff?In Amnesia: The Dark Descent, are these related to/the shadow?
The Shadow - An unseen force that is hunting Daniel. Its sole purpose is to guard the Orb that Daniel took from the burial chamber and has killed numerous people to achieve that end. While it is not seen as a physical being, it is described as a huge sluggish mass of darkness and leaves behind a fleshy damaging substance over anything it touches. One note hypothesizes that it is the will of the universe seeking to catch up with and contain the unnatural force of the Orb itself, but this might only have been colorful speculation.







The Gatherers - The main enemies of the game. They are Alexander's servants who were deformed when they drank wine poisoned by Alexander, and are seen as monstrous humanoids with deformed facial and bodily features. These enemies come in two variations, Grunts and Brutes, and patrol parts of Brennenburg Castle, attacking Daniel if sighted. Since Daniel is weaponless, they cannot be killed and have to be avoided. Grunts are horrifyingly disfigured monstrosities which have had their hands cut off and replaced with iron claws. Their offset eyes resemble those of a reptile. They appear to have had their lower jaw severed, and it now flops out over their chest. Brutes are malformed humanoids wearing overalls and with frankenstein-esque bolts and nails jutting out of their flesh. They attack with a blade on an iron pole sticking out of their arm. An interesting note on the possible origin of the Gatherers can be found in the Wine Cellar, where a flashback Daniel has depicts a group of Alexander's men having horrific bodily reactions to wine they consumed, saying things such as "I feel like my chest is going to burst!". One particular note, however, states that they are deserters of the Thirty Years' War, who got lost in the forests around Brennenburg, forced to forever haunt it, dragging with them anyone unlucky enough to venture in. These creatures cannot be killed; however if an object such as a rock or barrel is thrown at one, it will become momentarily immobilized, leaving the player a small window to escape.



The trees might be just a little trinket added to the game. Since it's a scary game and whats scarier than random trees falling?