Protagonist Bendy is a light-weight sidekick to his befuddled Professor Caldwell, entertaining enough in a 1950s gotta-kiss-all-the-girls kind of way. The writing is a little light-weight, too. When a young woman is tied to a chair, she must--for no plot reason at all--be tied up mostly naked. This is the kind of pulp fiction that earned pulp fiction its cheap reputation.
But even so the plot's a humdinger, with feint and counter-feint in all directions, until the culprit turns out to be a figure of honor and the gratuitous romantic interest does a 180 on the last page in Bendy's true-to-the-era weisenheimer voice.
The cover is full-on '50s screaming female. But why does the pier piling have an itsy-bitsy propeller?