My thanks to NetGalley and publisher Random House UK, Cornerstone, for the ARC.
Now then - this book really is just 'something else' - in a class of its own - a really major piece of historical fiction, though based on thoroughly researched fact. 
It's as fascinating, amusing and witty as Truman Capote was when infiltrating the lives of his Swans - his collection of ladies and their families who fell over themselves to provide him with confidences and gossip, travel and luxury.  Truman was a feted writer, the best of best friends to the ladies he adored and admired for their own back-stories of hardships overcome to elevate them to the top of society.  He was wealthy in his own right and he had access to Hollywood stars, Princesses, publishing moguls and even the periphery of the White House - a whole world of secrets. 
But, once you break a best friend's confidence there is no turning back.  This he did. There's a long spiral of descent as the alcohol and drugs which had been so much of the 'fun', in the hedonistic days gone by, gradually take their toll.  
I was totally immersed in the conversations; an eavesdropper in a lounge or a restaurant, at an extravagant Ball, on a yacht sailing the Mediterranean or at a mansion in Palm Springs.  Then, the 'after' emerges where all that is left is a diminutive boy in a man's body, seeking unforthcoming forgiveness.
An extremely poignant ending - really, really well-written.

I can't say in all honesty that I found this book an easy read, in terms of really short conversational sentences and quick jumps to seemingly unconnected passages,  Additionally I found some parts of the closing chapters - although they obviously have high literary merit - rather confusing in their fantasy portrayals.
Nonetheless, albeit that this read was a complete departure from my usual genre, I do admire the sheer weight of work that this has taken to produce.
Thank you Kelleigh Greenberg-Jephcott.