Secrets of the Lost City

A Scientific Adventure in the Honduran Rain Forest

From the Series Sandra Markle's Science Discoveries

  • Interest Level: Grade 4 - Grade 6
  • Reading Level: Grade 5

Join a real-life adventure—a scientific expedition to a remote area of the Honduran rainforest, suspected to be the ruins of the Lost City of the Monkey God. The team of scientists had only ten days to hike into the dense jungle, likely unvisited by humans in the past 500 years, and locate the archaeological site. In addition to searching for and finding incredible artifacts, scientists also uncovered an amazing, diverse ecosystem flourishing due to the lack of human influences. They recorded hundreds of different kinds of animals, including some new species as well as animals listed as endangered or previously believed to be extinct. Award-winning author Sandra Markle incorporates interviews and information from key scientists who took part in this ten-day expedition, showing how their discoveries led to new protections for this incredible place.

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Interest Level Grade 4 - Grade 6
Reading Level Grade 5
Genre Science
Category 5 Kinds of Nonfiction, 5KN: Narrative Nonfiction, Animals, STEM, STEM: Life Science/Animals, STEM: Technology
Copyright 2023
Publisher Lerner Publishing Group
Imprint Millbrook Press ™
Language English
Number of Pages 56
Publication Date 2022-09-06
Text Type Narrative Nonfiction
BISACS JNF003270, JNF037020, JNF052010
Dewey 972.85
Dimensions 10.625 x 8.875
Lexile 1160
Guided Reading Level U
Features Author/Illustrator note, Awards, Bibliography/further reading, Glossary, Index, Maps, Primary source quotations/images, Reviewed, Source notes, and Websites

Author: Sandra Markle

Sandra Markle is the author of numerous award-winning books for children. A former elementary science teacher, she is a nationally-known science education consultant. Markle has received many honors for her series Animal Predators, Animal Scavengers, and Animal Prey. Several titles have been named as National Science Teachers Association (NSTA)/Children’s Book Council (CBC) Outstanding Science Trade Books for Students K-12, and Animal Predators was honored as a Top 10 Youth Nonfiction Series by Booklist. Markle is also the author of the Insect World series and several single titles. Her book Rescues! was named a Best Book by the Society of School Librarians International and a Recommended Title of Outstanding Nonfiction by the National Council of Teachers of English’s (NCTE) Orbis Pictus Award committee; Animal Heroes was named a 2008 Lasting Connections title by Book Links. Markle lives in Lakewood Ranch, Florida with her husband, photographer Skip Jeffery.

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  • Children's Book Committee at Bank Street College Best Children's Book of the Year, Winner, 2023
  • Florida Book Awards Silver Medalist, Winner, 2022


School Library Journal

“An adventurous biology and archaeology book filled with beautiful images and impeccable design.”—School Library Journal

Children's Literature Comprehensive Database (CLCD)

“In this well-written text, readers will step into an exciting field of discovery, following in the footsteps of pioneering scientists and archeologists who brought an ancient city to life in the twenty-first century.”—Children’s Literature

Kirkus Reviews

“Markle provides clear explanations of the lidar mapping process, the camera traps, and the systematic exploration of the conservation team as well as a smoothly flowing story that carries readers along on these adventures. . . . An inviting introduction to an amazing place.”—Kirkus Reviews