A 1967 Newbery Honor Book While awaiting trial for murder and withholding from the king the obligatory fifth of the gold found in Cibola, Esteban, a seventeen-year-old cartographer, recalls his adventures with a band of conquistadors.

Shackelton's story of survival and rescue is amazing enough on its own, but understanding the science involved makes the tale even more interesting. Fascinating details with scientific explanations accompany the brief retelling of Shackelton's expedition, which found success but not in the way the adventurer intended.