9780395595060 | Houghton Mifflin, April 1, 1992, cover price $17.00 | About this edition: When his best friend Eddie Chavez disappears after they have spent the day together in the mountains of New Mexico, fifteen-year-old Alex cannot get anyone to believe his story and is even suspected of murdering the missing boy.

9780544336124 | Reprint edition (Houghton Mifflin, April 7, 2015), cover price $8.99 | About this edition: Best friends Eddie and Alex take their usual trip up to the mountains to escape the pressures of family and school, but this time Eddie disappears, and Alex finds himself caught up in the adult world of suspicion, guilt, and grief.

9780380000333, titled "Do Evil in Return" | Avon Books, June 1, 1974, cover price $0.95 | also contains Do Evil in Return

9780395643815 | Houghton Mifflin, April 1, 1993, cover price $16.00 | About this edition: In the late 1890s, after her gold-mad father abandons her in the small New Mexico Territory mining town of Eldorado, fourteen-year-old Maude struggles to survive and to hold onto her dream of becoming an artist.

9780544336131 | Reprint edition (Houghton Mifflin, October 14, 2014), cover price $8.99 | About this edition: Maude must fend for herself in the mining town of Eldorado, New Mexico, after her mother dies and her father's "gold fever" inspires him to take off for the Yukon.