It's from 1936, which I (and most others) consider Wodehouse's high period - it came in the middle of Heavy Weather, Thank You, Jeeves, Right Ho, Jeeves, The Luck of the Bodkins, Summer Moonshine, The Code of the Woosters, and Uncle Fred in the Springtime - a murderer's row of humor if ever I saw one. Not all of those books are his absolute tip-top - Summer Moonshine is a minor book; you might be thinking of the Blandings book Summer Lightning; I was - but it's a pretty impressive run for six years ('33-'39).
Laughing Gas is also arguably minor: it's not part of any of Wodehouse's series, the fantasy element is a bit odd and doesn't entirely emphasize his strengths, and it has one of Wodehouse's intellectually duller protagonists without a Jeeves figure to relieve him. On the positive side, there's lots of great Hollywood material, including a wonderfully beastly child star - Wodehouse didn't have major child characters in his work very often, but they tended to be great when he did.
That slightly dim hero is Reggie Havershot, third Earl of that name, the usual late-twenties rich and unencumbered Wooster-esque figure. He's in Hollywood because "the family" (the usual Formidable Aunt) wants him to stop a cousin, "Eggy" Egremont, from marrying an unsuitable American woman.
That woman is Ann Bannister, a former reporter who was briefly engaged to Reggie two years before (of course). She's now minder to the child star Joey Cooley, though she's maneuvering to become the new personal publicist for big star April June.
Reggie met April on the train to Hollywood, and she got her hooks into him then. Since he is dim, he thinks she's wonderful and they have the love that is true. Everyone else thinks she's leading him on for the title, and that she's mean and self-obsessed, but Reggie, like a good Wodehouse hero, will not have the name of the woman he loves bandied about.
But then Reggie goes into a dental surgery at the same time as that child star, Joey Cooley, and the two of them swap bodies "in a sort of fourth dimension." Reggie wakes up as Joey, though he has some trouble remembering that consistently - he thinks of himself as his former, large, strapping self, so the fact that he is now a weedy pre-teen with golden locks is a continual surprise to him.
Meanwhile, Joey is having a grand time in Reggie's body - he'd been keeping a list of people he wants to "pop in the snoot," from directors to scenario writers to April, and now that he is large and beefy, he's going to take full advantage of all the snoot-popping he can do.
Over the course of about two days, in which Reggie-in-Joey's body is stuck with the schedule of a child star living in the home of the head of his studio and under the baleful eye of that studio head's nasty sister, Reggie keeps trying to continue his old life - did I mention he's a bit dim? he's the kind of person who is no good at adjusting his plans to current circumstances - and is moping over what he assumes is the loss of April forever.
It turns out Joey was an absolute terror, and a lot of the things the kid did pre-swap come back to bedevil Reggie over the course of those days. Also, he's thrown together with Ann quite a bit, and comes to curse ever having let her go, particularly when he finally sees what a nasty person April is.
There are complications and chases and various other colorful characters along the way, and, of course, Reggie and Joey do end up colliding in the fourth dimension once again, so they can return to their respective correct bodies and their appropriate happy endings. They each somewhat ruin the life of the other, but in ways that they're both happy with, in the end.
Again, I think this is a bit on the minor side - the fantasy mechanism is fun, but Reggie is a bit too dim to take best advantage of it, and we don't see April being as horrible as we're told she is. But it is a fun Wodehouse book from his best period, with a lot of amusing material.















