In 1768, an 11-year-old sailor named Nicholas took to the seas with British explorer James Cook on a 3-year expedition of discovery, venturing into an uncharted world filled with strange lands, mysterious peoples, and peculiar creatures. Sailing the Unknown, written by Michael J. Rosen in the shorthand style of a historical journal and illustrated with panoramic vistas by Maria Cristina Pritelli, depicts this historic journey from the viewpoint of young Nick.