Meh. The story might be great, but so far it's pretty hard going. Umberto just goes off on these tangents where he babbles incessantly about stuff that seems to have nothing at all to do with the story. Seriously, do I need to read three pages of description of the entrance to the freakin' church? No. Just get to the mystery. He seems to do OK with dialogue, there's just not much of it. He'd be better off with less rambling descriptive crap and more dialogue that actually propels the story along.
In other words, the author seriously needs a decent editor.