Absolute Proof

Investigative reporter Ross Hunter nearly didn't answer the phone call that would change his life - and possibly the world - forever.
'I'd just like to assure you I'm not a nutcase, Mr Hunter. My name is Dr Harry F. Cook. I know this is going to sound strange, but I've recently been given absolute proof of God's existence - and I've been advised there is a writer, a respected journalist called Ross Hunter, who could help me to get taken seriously.'
What would it take to prove the existence of God? And what would be the consequences?
The false faith of a billionaire evangelist, the life's work of a famous atheist, and the credibility of each of the world's major religions are all under threat. If Ross Hunter can survive long enough to present the evidence...