While visiting Yellowstone National Park, eleven-year-old Rosie and her little brother, Dylan, and sister, Cricket, pay a visit to Old Faithful, only to find that the famous geyser is losing its steam and becoming dormant, possibly from a change in the underground system that feeds the geyser.

But what would cause such a drastic change? When Rosie finds an old knife with strange symbols on its handle, she knows it may be related to the mystery, but she doesn't want to admit to taking it. And when she meets a boy her age who claims to be a descendant of a Native American who studied the geysers, she knows the knife belongs to him, but she still won't give it back. Can they make sense of the clues in an old letter from an early explorer mentioning a strange place with white cones?

At least they have Magpie, Dylan's tuxedo comfort cat, to help show them the way, even though sometimes her way turns out to be the more hair-raising one! Through it all, Rosie eventually finds that she can admit to her mistakes and is much braver than she thought, as are her brother and sister, and they soon learn there's much more to the park than meets the eye.

Come join the Tuxedo Cat Kids on an adventure through Yellowstone that also teaches about the natural world of a most-beloved national park. A book for kids age eight and up and adventurous adults.

This is the third in the Tuxedo Cat Kids Series, each book being a stand-alone read with the same central characters. The first two are set in Arches and Glacier national parks.

Bonus: Beautiful original artwork by Cary Cox!