From the author of The Secrets of the Republic Series, Douglas A. Gosselin comes Doctrine of Shadows (Book 3)-a historical literary fiction that threads espionage, loss, and the unrecorded architecture of the early Republic into a single, searing narrative. Set between 1777 and 1829, this isn't just historical fiction. It's subtext rendered as strategy. A story whispered through ledgers, lifted from footnotes, and sharpened into a doctrine never meant to be seen. Follow Smith, a nameless architect of America's unseen scaffolding. Follow Cyrus, the boy he forges into a blade. Follow Camille, the sister who resurfaces not with allegiance-but with consequence. Gosselin doesn't write about history-he infiltrates it. With language that moves like coded breath and characters built on silence, Doctrine of Shadows reveals the Republic not as it was remembered, but as it was protected. ���� The cipher is real. It's in the book. If you pay attention. #DoctrineOfShadows #HistoricalFiction #EspionageThriller #FoundingFathers #SecretHistory #BookTrailer #DouglasAGosselin