I just finished Doc Savage #2. The Land of Terror. Published April 1933.
In this one Doc and Co face the scheming mastermind Kar who uses the enigmatic Smoke of Eternity to commit crimes. The Smoke dissolves whatever it touches. The yarn opens with a murder, there's a bank robbery, a hide out, cutting edge science (for 1933), a pirate ship...that's also a hideout, a submarine, more murders, seaplanes, ocean liners, a lost island of dinosaurs, hopping T-Rexes, and beavers the size of bears. Not bad for a novel just shy of 56,000 words. It definitely kept up the pace, as you'd expect from a pulp novel. But the "oh gosh, Doc Savage is the bestest at everything always" routine grated just as much this time as the last time I tried to read this one a few years back. Luckily it eased up ever so slightly in the second half of the book. I really hope that calms way down as the novels go on. Damn that's annoying.