The time projector has been unexpectedly activated, transporting Bass Foster's fellow castaways in time to the American wilderness where native Indians battle Spanish invaders. And even as the unlikely band of travelers struggles to save the Indians from their foe, Bass and his troops are caught in the intrigues of Ireland's warring kingdoms. Divided and standed in their different times and lands, the castaways face the challenges of foes far more deadly than any they have ever known ...
Franklin Robert Adams (August 31, 1933 - January 4, 1990) was an American science fiction and fantasy writer, formerly a career soldier. He is best known for his "Horseclans" books. He wrote as Robert Adams, an abbreviated form of his full name.
Adams was an early pioneer of the post-holocaust novel. His Horseclans novels are precursors to many of today's attempts at this type of story, many of which do not exhibit his painstakingly detailed world view or extraordinary plot follow-through (many of his Horseclans books are so interlinked that they make sense only when read in order; he did not create many "stand alone" books in the series).
Hallmarks of Adams' style include a focus on violent, non-stop action, meticulous detail in matters historical and military, strong description, and digressions expounding on various subjects from a conservative and libertarian viewpoint.
If you like displaced people in time then this series is for you. Robert Adams does an excellent job of telling the troubles and adventures of this houseful of modern people jerked back to medieval Europe and their effect on history. Highly recommended