It's a Lovecraft-inspired horror-adventure, set in the Dreamlands. It is called: Dreamlands. Here is the blurb: Isaac Sloan, the dissolute scion of a once wealthy family, is nearing the end of his credit when he receives an urgent summons from his estranged uncle. In Arkham, he will learn of the dying man's double life, and of long forgotten enemies newly roused. Join Isaac Sloan as he parts the veil separating the pedestrian world of early twentieth century New England from an uncharted land of riddles and horrors. In that mysterious realm called the Dreamlands, he will become enmeshed in a struggle against the servants of an incomprehensible entity.
I have to admit I put it down at first (the intro is not so great), but recently picked it up again and could not stop, finishing it in one sitting. Great stuff! (also, you popped my Cthulhu cherry :shy