Grace Harlowe with the American Army on the Rhine [Illustration: The Visitor Was Captain Boucher. _Frontispiece._] Grace Harlowe with the American Army on the Rhine By JESSIE GRAHAM FLOWER, A.M. Author of The Grace Harlowe High School Series, The Grace Harlowe College Girls Series, Grace Harlowe’s Return to Overton Campus, Grace Harlowe’s Problem, Grace Harlowe’s Golden Summer, Grace Harlowe Overseas, Grace Harlowe with the Red Cross in France, Grace Harlowe with the Marines at Chateau Thierry, Grace Harlowe with the U. S. Troops in the Argonne, Grace Harlowe with the Yankee Shock Boys at St. Quentin, etc., etc. Illustrated PHILADELPHIA HENRY ALTEMUS COMPANY COPYRIGHTED, 1920, BY HOWARD E. ALTEMUS CONTENTS PAGE CHAPTER I--ON THE MARCH TO THE RHINE 11 Grace Harlowe looks for Hun treachery. “What I have seen has chilled my very soul.” The supervisor gives her orders. Elfreda sees a danger signal. “For the love of Heaven, stop it!” A mighty crash and a plunge into the river. CHAPTER II--“GRACE HARLOWE, TROUBLE-MAKER” 25 Mrs. Chadsey Smythe gets a chilly bath. “Arrest that woman!” Won Lue makes his bow. Grace gets a warning. Overton girls billeted in a cellar. Keeping house under difficulties. Summoned before a superior officer. CHAPTER III--THE IRON HAND 38 Grace resents an imputation on her honor. A serious accusation. “The woman is an impertinent creature!” “Captain” Grace is accused of trying to drown her superior. Grace Harlowe’s dismissal demanded. The Overton girl stands on her rights. CHAPTER IV--A TIMELY MEETING 44 The mystery of three birds. J. Elfreda comes to grief. Grace meets her friend the general. How “Captain” Grace got even. The supervisor hears some unpleasant truths. “Ridiculous!” exclaims General Gordon. CHAPTER V--GRACE WINS AND IS SORRY 55 “I don’t know what you are talking about, but I agree with you.” Overton girls have supper behind a smoke screen. An obliging Chinaman. Grace lays down the law to Mrs. Smythe. “My orders are that you get out of my sight instantly!” CHAPTER VI--MESSING WITH A BRIGADIER 64 Overton girls left to walk. A grilling hike. The general is not deceived. An invitation to visit cloudland. “Captain” Grace gives the intelligence officer some real intelligence. “Watch the skies in the early morning.” CHAPTER VII--OFFICERS GET A SHOCK 76 Grace tells of the flights of enemy war pigeons. Captain Boucher asks for the Overton girl’s assistance. Army officers prove charming hosts. The Chinaman is on guard. “Captain” Grace uses a cobblestone for a door-knocker. Military police come up on a run.