As Major Robert Rogers's rangers make their way along the hills by the Lake Memphramagog, young Tom Evans, his uncle, Captain John Evans, and Mohawk Indian guide Toe-Lee-Ma are aware that danger and treachery lay ahead. Fort Ticonderoga had been laced with explosives by the French and exploded into a great fiery inferno, while a spy lurked in the forest by nearby cabins with his friend and ally, the fierce Abenaki Indian Satanis. Now, somewhere in this cold, dark, snowy forest, Tom and his Uncle John must find the young Sally Williams, alive or dead, and take their vengeance on Satanis and his counterpart, a man by the name of Messieur Bouchet. But first they have to survive the wilderness trek hundreds of miles up country to the mighty fortress of Quebec-to save their homeland or die. It is a long, desperate journey filled with danger in freezing temperatures, through Abenaki territory, but go they must, to fulfill The Border Covenant. The Great French General the Marquis de Montcalm-Gorzon thought it couldn't be done, and he was counting on it for the sake of all of New France.