"I do not like the rotten egg scent in Yellowstone National Park. It is gross. It makes me gag. It is wa-a-a-y too stinky for me." So states Fiona.

But even though she doesn't like the rotten egg smell, plenty of other creatures don't mind it at all. Join this redheaded, freckle-faced little girl on a journey of discovery in the world-famous Yellowstone National Park.