Remember Hal and Roger? Intrepid teenage adventurers from the 1970s. There was “steady nineteen-year-old” Hal, “six feet tall, with the strength and brains of a man”. Nice! Roger was a bit of a ninny, but then he was only thirteen years old and not “a heavy thinker”. The books followed the brothers’ adventures capturing animals for zoos. Not very PC. Willard Price, the author, came from a family of devout Methodists and might even have spied for America. So at least there’s that.

All very retro. Like Gummi Bears and the Rubik Cube. But more interesting, perhaps, is the price of the book.

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