The Twenty-One Balloons Teacher Sample The Twenty-One Balloons relates the incredible adventures of Professor William Waterman Sherman, who in 1883 set off in a balloon across the Pacific, survived the volcanic eruption of Krakatoa, and was picked up in the Atlantic. The Twenty-One Balloons Teacher Guide contains all a Memoria Press product: https://www.memoriapress.com/curriculum/literature-and-poetry/the-twentyone-balloons-teacher-manual/