I was familiar with Anthony Boucher (real name William Anthony Parker Wright), mainly because he wrote the scripts for the old Sherlock Holmes radio program. He was a prominent writer, editor, and critic in his heyday, working both in mystery and science fiction. Among his mystery heroes was a detective named Fergus O’Breen. But Fergus doesn’t appear in The Case of the Baker Street Irregulars; his sister does.

If you’re a fan (like me) of Sherlock Holmes, you’re probably familiar with two different groups known as the Baker Street Irregulars. The original group showed up occasionally in the Holmes stories, a ragtag gang of London street urchins who ran errands and served as informants for the Great Detective. The second group is an organization of Sherlock Holmes fans, originally organized in 1934 by Christopher Morley. It might be (I’m not sure) the first Fandom group. I’ve occasionally considered joining our local affiliate, which was called (last I heard ) The Norwegian Explorers.

Anthony Boucher was himself a member of the Irregulars, and paid his BSI friends the compliment of making them look like complete horses’ rear ends in his novel, The Case of the Baker Street Irregulars.

This is the scenario – the president of Metropolitan Studios in Hollywood is planning to make a movie based on the Holmes story, “The Adventure of the Speckled Band.” But he made the mistake of hiring Stephen Worth, a drunken, opinionated hard-boiled mystery writer, to do the script. Worth, however, actually hates the Holmes stories, and has been very public about it. The members of the BSI, of course, are outraged – and some of them are quite prominent and influential (membership has included, over the years, Alexander Woollcott, Isaac Asimov, and Franklin Roosevelt). So the studio head invites a group of BSI members to come to Hollywood at his expense and serve as technical advisors. He puts them all up in a large Hollywood house, and the very first night Stephen Worth shows up drunk and unleashes a tirade on them all. Later that night, he is shot to death in his room. Then his body disappears.

What follows is a very strange sequence in which each BSI member has a bizarre, improbable adventure which oddly echoes various elements from Sherlock Holmes stories. They report on these adventures to a gathering of the whole group, in monologues modeled after the ones you find so often in the Doyle stories (and I’ve always found those monologues the most tedious parts. They are no more riveting here). In the end they all gather once more to try to determine the real murderer.

There’s a lot of clever plotting in The Case of the Baker Street Irregulars. But it’s too complicated, too implausible, and too clever by half. Toward the end I stopped caring, but I did finish the book. (I might mention that Boucher was a leftie, and his political sympathies come through here and there.)

The Case of the Baker Street Irregulars is worth reading for its historical significance, but it’s not a great mystery novel. I found myself sympathizing a little with the murdered, hard-boiled Stephen Worth.