(3) 4-6 39 Clues: Superspecial series. The CIA hires the Cahills to find their estranged cousin Sinead Starling, who has stolen incurable virus samples from the U.S. government. To prevent a global health crisis, Amy and Dan travel to Cuba and the Bermuda Triangle. This new spinoff is more tightly focused than its precursors but has the same high stakes and fast-paced action fans have come to expect.

Reviewer: Lana Barnes

(3) K-3 Unexplained: What's the Evidence? series. The intriguing questions remain (necessarily) unanswered in these slim books. Still, the paranormal-mystery topics are perennially popular, and the books' copious illustrations and photographs, accessible texts, and clear organization satisfy some requirements of report-writing...as long as no conclusions must be drawn. Reading list, websites. Glos., ind. Review covers these Unexplained: What's the Evidence? titles: Are Crop Circles Real?, Is the Bermuda Triangle Real?, and Is the Loch Ness Monster Real?.

Reviewer: Miriam Lang Budin

(4) 4-6 Unsolved Mysteries series. These books offer clear-eyed assessments of persistent unexplained phenomena. An anecdote introduces the titular subject; each survey superficially touches on history and possible explanations--scientific or otherwise. The slight texts are easy to read and enhanced by captioned photos and "Myth or Fact?" bubbles. The open-ended discussions allow readers room to reach their own conclusions. There are four other fall 2015 books in this series. Reading list. Glos., ind. Review covers these Unsolved Mysteries titles: Bigfoot, Haunted Houses, Crop Circles, and The Bermuda Triangle.

Reviewer: Sian Gaetano

(3) 4-6 Enduring Mysteries series. Karst explores mysteries that linger prominently in our culture. Could Bigfoot and Nessie be real? Could aliens have visited Earth? Is there something supernatural about the Bermuda Triangle? These books present balanced views that include modern-day scientific inquiry while still leaving room for kids to use their imaginations. The accessible texts are well punctuated with glossy photos and maps. Websites. Bib., glos., ind. Review covers these Enduring Mysteries titles: Area 51, Bermuda Triangle, Bigfoot, and Loch Ness Monster.

Reviewer: Lisa Catherine Findlay

(3) YA Unsolved Mysteries series. Archival photographs, sidebars, and maps combine with a straightforward text to present thought-provoking examinations of these unresolved phenomena. Theories and possible explanations along with myths and current debates provide a comprehensive discussion. The concluding "Tools and Clues" feature includes a list of equipment used to investigate crop circles and a summary of popular explanations for the Bermuda Triangle. Reading list, timeline. Bib., glos., ind. Review covers these Unsolved Mysteries titles: The Bermuda Triangle and Crop Circles.

Reviewer: Tamara DePasquale

(4) 4-6 Mysterious Encounters series. These books present descriptions, histories, and anecdotes of eerie occurrences. Alternative explanations addressed in the text and sidebars will satisfy skeptics and scientists alike. Though the stock photos and illustrations can be awkward, they break up the texts nicely. Reading list, websites. Glos., ind. Review covers these Mysterious Encounters titles: Crop Circles, UFOs, and The Bermuda Triangle.

Reviewer: Sethany Rancier Alongi

(4) 4-6 Unsolved Mysteries series. This series explores unexplained places, creatures, and phenomena such as the Bermuda Triangle, Big Foot, and alien encounters--high-interest topics that will likely be a draw for readers. In some cases the author gives too much credibility to unproven or unfounded theories, and the writing can be dense. Each well-organized volume is illustrated with photographs and drawings. Glos., ind. Review covers these Unsolved Mysteries titles: Ancient Astronauts, The Bermuda Triangle, Creatures of the Abyss, Lost Cities, and Monsters of Mystery.

Reviewer: Lisa Catherine Findlay

(4) K-3 Eyewitness Readers series. Although science has effectively debunked the legend of the Bermuda Triangle, this volume for early readers presents a more credulous perspective. Stories of ships, planes, and sailboats that have met with disaster or mysterious occurrences are related in simple prose accompanied by average-quality color illustrations. The text concludes with natural and paranormal explanations for the strange events. Glos.

Reviewer: Peter D. Sieruta