and then went on to write Foyle’s War. Did I mention his Detective Hawthorne series, which mischievously features a sidekick called Anthony Horowitz? And The Power of Five, his fantasy novels?

I s there a writer alive with a more prodigious output than Anthony Horowitz?And all of it is pretty great. He gave us Foyle’s War and the early episodes of Midsomer Murders, scripts for ITV’s ...