I really love this book until near the end Frederic Brown made the mistake of killing off the main character Doctor Magus. To me it diffused the story and to make matters worse he ends the book killing off anybody else you could probably pull for to get the money.
The book starts off with two carnies who rob a bank and get away with 42,000 in cash. One of them is killed in the get away car crash. The other carnie named Mac Irby survives thinking he now has 42,000 in cash to live on. It sounds small in amount but converted to dollars today it would be worth 809,000 which is a huge chunk of coin.
Irby starts to make plans but what he does not realize is there someone else at the carnival who knows about the cash, where Irby has hidden it, and now kills Irby.
The killer feels good except someone witnessed the killing. A woman named Dolly and the killer now has to eliminate her without bringing more suspicion upon himself. He knows Dolly has a jealous abusive husband and the killer makes arrangements to have her husband catch her with another man so he will kill her. The plan works perfectly.
Meanwhile the woman who was sleeping with Mac Irby the night he was killed named Maybelle goes to Dr. Magus for help because the police are investigating and although she saw nothing regarding the killing she does not want to be considered a suspect because she had been with him before he was killed. She wants Dr. Magus to be her alibi and say that they spent the night together. I will quote this scene where he does a body search for money on Maybelle to make sure she is not the murderer or an accomplice too it because it gives such insight to Dr. Magus.
"She giggled a little, "Okay Doc. It won't take you long to find out, me wearing only shoes and a wrapper." and Dr. Magus replies, "Good, and I remove the shoes first to save the best for last. No, nothing in the shoes and now the wrapper.....No nothing. And now, keeping firmly in mind that money can be concealed, at least conceivably, upon any part of the body by being fastened down with adhesive tape, and that a tightly folded bill can be concealed, well, almost anywhere, and that it is too dark for me to see--He missed no inch of surface, no nook or cranny. Maybelle giggled again, "Doc, no police matron ever gave me a search like that." and Dr. Magus replies, "No police matron would have the same ulterior motive. And you have no money on you but I found something just the same. I found how badly I want to give you an alibi for tonight. So if necessity arises wearing a blue uniform we shall say you slept here with me all night-and tell only half a lie. Oh, my dear--"
And Maybelle, all of whose amours had been with younger and less experienced men, learned a few things that night that she had never know before. Young lust and then experienced lechery, with a murder in between. All in all quite a night"
Dr. Magus begins his investigation into the Irby murder and discovers he robbed the bank with the other carnie, that the money was hidden in a "punk Jar" in the unborn tent in the body of a two headed calf.
The only problem is the killer had already rifled the money and hidden it elsewhere and he has booby trapped the two headed calf with dynamite. Needless to say poor Dr. Magus is blown to smithereens without the glory of finding the money and unveiling the killer.
The flaw of the book. It ends with nearly everyone, including the killer being killed and the money burned up in a fire. A real downer. You can't take away your protagonist, especially one that is so well written and defined. Dr. Magus is a great character, flawed but a human goodness to him, and you kill him so your story loses focus and meaning. I would have given this a five star review had Dr. Magus survived.
I wish I could make a movie based on the book but I would change the ending for Dr. Magus to come out triumphant. It would be a great movie.