Tendrils Of Teeth And Blood

There was another unprompted email from Edward. This one's a little different. The subject line is Tendrils Of Teeth And Blood:

"They are wrapped around amygdala and hippocampus, sprouting from cerebellum. Writhing and salivating as they twist and distort all thoughts from the source of emanation. Sinew spreads through the grey matter, transmitting abhorrent desires through white matter.

I know a secret."

This is the image that was provided:

The image name is "ALIGNS.png" which rearranges to SIGNAL. I sent a reply back, asking what the secret he knows is. It was an automatic response again:

"The ending of this story"

I understand he has a plan to end the Signal, but his lack of willingness to divulge any details makes it difficult to trust him. He has to know that, right? It's impossible to fathom what is plan may be. All I know is that my communication with him proves I'm a part of it somehow.