Switcheroo is a detective yarn set in the unlikely locale of Louisville, Kentucky, but since author Emmett McDowell lived there most of his life, it’s no surprise. Nearly all his writing featured Kentucky in some form, and he even branched out into non-fiction and wrote a Civil War history of Louisville. Switcheroo was his first book, and originally appeared in 1954 as one half of an Ace Double, with Lawrence Treat’s Over the Edge on the flipside. The edition you see above is from the Australian imprint Phantom Books and was published in 1955. Basically, low rent detective Jaimie McRae is hired to locate a missing woman. All the usual benchmarks are there—unhelpful cops, a hot secretary and girl Friday, and unexpected developments. It earned lukewarm reviews all the way around. The uncredited art for Phantom closely resembles the original Victor Olson art for the Ace Double edition, which you see above and right, but we doubt Olson had a hand in the rooftop makeover. 
