Terminator, I've read "The Secret Adversary"; downloaded it from manybooks a couple of years ago. I agree, it is unputdownable, though I kept imagining the main characters to be much younger than their stated ages.
Many eons ago I took in lodgers, myself and one of them both loved Agatha Christie and swapped books. I've lost count of how many I've read, though I did make a list of them. Luckily, I'm very bad at remembering plots so can read a novel and only realised I've read it before towards the end!
Thanks for the heads up about Grisham, he's an author I've never read. (I'm sure of that!)
speakingtohe, looked up your recommendations on Amazon: great choice. Many of them are in series, would you suggest I start at the beginning, or could I begin with Martha Grimes' "The Black Cat"? I have already read lots of Heyer, love her wit and strong bolshy heroines.
Format C, I've got the pbook of Bill Bryson's "Shakespeare" but can't get passed the first few pages without putting it down and doing something else. He begins by saying that very little factual evidence exists regarding Shakespeare's life. End of story! Loved Philip Burton's fictionalisation of the bard's life in "You, My Brother". The experience has put me off Bryson a little.
Thank you for the recommendations. Please keep them coming.
