The Calling: Cthulhu Chronicles, Nelson Michael Alan

After a series of horrific events, four strangers are left searching for answers to their personal tragedies. But as they struggle to make sense of these terrible occurrences, they are brought together by the discovery of a dark scheme that threatens the existence of everything they have ever known. An unspeakable evil is about to be unleashed onto the world. An evil known only as...Cthulhu.