Footprints on Mars, tells three adventure stories of young people living on Mars in the future.Glen and the Gardens of Mars, is told in the voice of Glen Roland. At ten years of age, in 2042, he lands on Mars with his astronaut parents, determined to become an astronaut himself, in spite of his loss of a right foot.Rusty and the Rocks of Mars, is related from the point of view of Rusty Pierce, fifteen, who in 2087, pretends to be a twenty-one year old "hard-rock" miner. He goes to Mars with two other miners, fulfilling his late uncle's dream, by putting a wreath on the Tom Mutch Memorial. He also wants to supplement his uncle's rock collection, with a sample of Native Iron, only found on Asteroids.Amanda and the Mirrors of Mars, relates thirteen year old Amanda's efforts, in the twenty-second century, to save her underground town from a terrible flood, caused by giant orbiting mirrors, melting the North Polar ice cap.