Budding Bermuda Triangle skeptics, alien investigators, and monster hunters take heed: the Unsolved! series is here to creep you out about all the weird things out there. A lively mix of photos and artwork is paired with straightforward text that conveys a sense of unease while working in the known facts, too. Mysterious Predictions is especially haunting: Valerie Clarke’s vision of the World Trade Center attacks was televised just three months prior to 9/11. Nostradamus, astrology, and palm reading are also mentioned. There is some topic overlap between books, but that shouldn’t hinder browsing. Vocabulary is explained on each page, and a brief index and list of further readings close. Grades 4-6. --Daniel Kraus
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