Basic story: Chastity was raised by a single mom and was told her dad died long ago. But it's after her mom dies that she finds out the real truth (that Chastity was the product of a rape) and needs to mourn her mother and discover her past -- if she has any family and how this all came to pass and why they were constantly moving. It's a really interesting story idea, but my issue is with the execution and quality of writing.
There are lots of flashbacks that aren't set up easily for the reader to follow; the writing for this is all over the place to the extent that I wasn't sure who was speaking; the dialogue was awful and not meaningful; I think this was intended to be third person POV, but it's not exactly clear which POV we're reading at times; and, grammar issues abound -- misplaced and/or unnecessary commas, wrong words, missing words.
By far, my biggest issue is that it is NOT truly a standalone as the synopsis suggests because Chastity never gets resolution with her whole past. We're left with an unread letter from the biological father, a flight to Venice (which is odd, since Florence is usually the city for artists), and a burgeoning romantic relationship with Timothy. And, there is the barest hint at a romance here... it's not very well plotted out and not very romantic at all so don't get your hopes up.
I understand that there's a sequel, in which case, you shouldn't say these can be standalone.