Guardian of the Horizon

Know about the book -

Guardian of the Horizon is written by Elizabeth Peters and published by Harper Collins. It's available with International Standard Book Number or ISBN identification 0061804010 (ISBN 10) and 9780061804014 (ISBN 13).

Readers have long wondered what befell the Emerson clan during the years before the Great War. Now, at last, the silence is broken and the truth revealed of a perilous journey to a secret and mysterious place hidden deep in the heart of the unforgiving desert. An adventure prompted by loyalty to an endangered friend -- and spurred on by lies and treachery -- it leads Amelia Peabody and her intrepid family into a nest of vipers lying in wait at a remote mountain fortress. And when a dark past and a shocking mystery are ultimately discovered, a loved one may be lost forever.