A good start to what appears to be an interesting storyline.The characters come across well and the dialogue is believable. If I might suggest the author looks at it with a view to another edit, as this is written in past and present tense. By eliminating word repetition also, it would tighten up the text.
I read the first few pages, and while i can tell you have a good story on your hands i feel it could be much improved by using the good old 'show, don't tell'.
I feel it needs more dialogue to do the talking, especially in the beginning where you want to hook readers into reading the rest of your story. Also, when you do use dialogue, i feel you should tell us more about the characters movements, facial expressions, tone of voice etc. Adding some humour would be good too but that's just my personal opinion!
Well done for having published a book though, much more than i have done at the moment!!