Christopher H Bidmead tweeted this tantalising message earlier...

Just finished being interviewed by a delightful chap, Richard Marson, for his upcoming book about John Nathan Turner. I got coffee & cake.
And then on Roobarbs, Richard Marson posted this:

As author of said book, I should just say that it's in the early stages of research and interviewing - but even at this stage, I think it's going to be a rewarding, sometimes poignant and hopefully surprising read. I certainly hope so - wish me luck!!
Sounds very interesting!