Who is Simon Warwick?

Wealthy Lord Charlton decides to alter his will, leaving everything to his missing nephew whom he hasn't seen since the boy was a baby. Simon Warwick was adopted after his parents were killed in an Air Raid, and taken to America as a one-year-old. But no one knows the name of his parents, where he is now, or what his new name is. It seems almost impossible to find him, and when Lord Charlton dies before the missing heir can be found, his lawyer is stuck.But 2 men show up, each claiming to be the missing nephew. Before the lawyer can validate the claims of either one, one of the men is dead. Enter Chief Superintendent Henry Tibbett. He must uncover the backgrounds of both heirs, the dead man and his rival, who is now suspect number one. He thinks he has it all figured out when a jaw-dropping plot twist changes everything.I really enjoyed this book. I probably would not have given it 5 stars because I did guess the identity of the murderer quite early, but the book is really two mysteries, the identity of the murderer, and the identity of Simon Warwick. And the the latter involved a plot twist I have never before seen in a mystery book and it may still be unique. Even if someone else has used it, I am sure that this is the first time it was ever used, and it will blow you away. Wow! Wow! Wow!