dead but alive?

When Reagan Domhall disappears, few are the ones that dare to try and figure out where he went, it's obvious, the other people have him. William Baker, his best friend is devastated.
Imagine his surprise when one night Reagan pops into his room tells him to meet him somewhere and rushes out, specifying no one should know he's back.
Where was he?
Why was he back?
Why should no one know he's here?
And what happened during these three long months?
William sure plans on figuring it out.

This story is entirely mine and no plagiarism will be tolerated.