Loved the fact that you didn't tell who the person was. However I was in a haste to read ahead to find out. Interesting. Snape's thoughts about his saviour seem misplaced to me at first. But then it made a lot of sense.
"sevvy is alive! i knew in some realitiy
WOW! i was half expecting voldemort to be in the bed! snape is much better though... your summery really pulled me in, mostly because you didn't say who the patient was. i had to find out and that chapter was really good! i hope that you can update soon!
Oh, I love that surprice at the end... Snape, what? I saw the summary and just *had* to know who this man was :)