The author’s style makes for effortless reading; Lane’s novel is interesting, variable and complicated without the heaviness often associated with stories of substance, and she balances her many characters and plot lines like a master.
--Clayton Bye, The Deepening: http://www.claytonbye.com/
Book III is best experienced if you read its prequels. The characters take some time to understand if you do not know their history, but regardless they are very well written and exciting. This is certainly one of the most unique vampire novels I have come across. It is chock full of imagination and feeling; a totally fresh look at the dark side.
--Loloty, Coffee Tome Romance: http://www.coffeetimeromance.com
Having read the first twenty-nine pages off and on, I continued straight through to the end. As I’ve already said, the plot is superb, and when such a plot comes along, I always marvel at the human imagination and what it can produce.
--Fanny, Cerebral Reviews: http://cerebralreviews.com

The story does stand alone--and may be better suited that way for those who do not have the patience to read an entire trilogy before reaching that much-desired "Happily-Ever-After" ending. However, reading the full trilogy does make for a richer, even more provocative experience, as there are a number of plot twists that do intertwine throughout the different individual story lines.
However you approach the trilogy, all three books are now available through Amazon's Kindle store, and Twins of Darkness should join its predecessors' paperback status soon enough. I will keep you posted.
Happy reading!