Classicly

The Grey Cloak is a historical adventure novel written by Harold MacGrath, an American novelist, short story writer, and screenwriter. The author has taken a few liberties with the lives of various historical personages who pass through these pages; but only for the story's sake. He is also indebted to the Jesuit Relations, to Old Paris, by Lady Jackson, and to Clark's History of Onondaga, the legend of Hiawatha being taken from the last named volume.