The Road to France. Napoleonic Horseman, #9

Book 9 in the Napoleonic Horseman series by Griff Hosker. Now recovered from his wound and having had a brief period of rest with his wife Major Matthews, General Wellesley's aide and sometimes spy, is sent back into Spain. The allies have gathered enough men to begin to retake Spain and then begin to attack the French on their own soil but the road to France will not be an easy one. With Sergeant Sharp at his side the intrepid Robbie Matthews is sent behind enemy lines to seek out a safe route for the allied armies heading for France.
At the same time, he must train four new aides for Marquis Wellington and as they are fresh from England with lofty and unrealistic goals that is as hard as any mission as a spy. Encompassing what many consider to be Wellington's greatest battles, Vittoria, the Nivelle and St. Pierre, the Road to France is the penultimate book in the Napoleonic Horseman series.