12 books • 2 series
The Man Who Flies with Birds
Weather Legends
Inside Earth
Underwater Exploration (Restless Sea (Hardcover))
Savage Waters (Restless Sea (Hardcover))
Shifting Shores (Restless Sea (Hardcover))
Human Impact (Restless Sea (Paperback)) (Restless Sea (Hardcover))
Ocean Wildlife (Restless Sea (Hardcover)) (Restless Sea (Paperback))
Dangerous Crossings (Restless Sea (Hardcover)) (Restless Sea (Paperback))
Nature's Fury
Legends of Landforms
The Dangers of Strangers