From the ages of 5 to 16 years old I wanted to be an archaeologist, nattily attired in khaki, under the baking sun, slowing brushing away red dirt to reveal priceless treasures . When I gave up that dream, I replaced it with another one, that of marrying an archaeologist. This occurred to me when, collating some of my favourite quotes to facilitate the delivery of a pithy yet educated aside in polite conversation, I came across Agatha Christie’s assessment of life with an archaeologist; An archaeologist is the best husband a woman could have. The older she gets, the more interested he is in her. Dame Christie was my top author for many years and I still experience the thrill of meeting up with an old friend when Poirot and Captain Hastings converse in their sitting room at the start of each story, much like those other most famous of sleuths, Holmes and Dr Watson. Such was my admiration that, believing imitation was indeed the sincerest form of flattery, I once tried to create my...