This 3 book lot titled "Mysteries In Our National Parks" by Gloria Skurzynski & Alane Ferguson is a charming series of detective stories set in various national parks. Published by National Geographic, the hardcover novels are suitable for young adults and ages 4-12, making them perfect for sparking a love of mystery and nature. With a vintage feel and ex-library mark, these English language books offer a unique and engaging reading experience for young readers interested in solving intriguing puzzles in picturesque national park settings.

Wolf Stalker (1997)

Deadly Waters (1999)

The Hunted (2000)