This serviceable, well-written series presents tantalizing, dramatic accounts of odd phenomena that happened to real people. Each volume opens in an intriguing manner. Accounts are based on “evidence” supplied by victims and eyewitnesses, but there are no definitive answers. In some books, other versions of the stories or similar types of occurrences are given, including versions from different cultures. High-quality photos, historical illustrations, and paintings with informative captions lend atmosphere; some “framed” photos have a vintage look. “Fact” sidebars provide extra information. “Skeptic’s Note” sidebars offer alternative viewpoints. Additional sidebars, with extra background information, appear occasionally. VERDICT A good, nonjudgmental series that respects readers’ intelligence. In pro-con debates, students can discuss which cases are true or not. What facts support their opinions? Alternatively, in journalism or creative writing units, students can do “interviews” with “eyewitnesses” to the incidents. Strongest titles: The Greenbrier Ghost and Popper the Poltergeist.