“An engaging voyage into some of the great mysteries and wonders of our world." --Alan Lightman, author of Einstein’s Dream and The Accidental Universe “N

Drawing on rarely examined diaries and journals, Down the Great Unknown is the first book to tell the full, dramatic story of the Powell expedition. On May 24,

What is your name? Where did you come from? And where are you going? In this immersive novel set in 1840s Britain and France, these questions probe at the essen

In TheGreat Unknown, award-winning historian and journalist Greg Robinson offers a fascinating and compulsively readable collection of biographical portraits of

A lively chronicle of his enigmatic life.