Randall Parrish 
When Wilderness was King / A Tale of the Illinois Country [PDF ebook] 
(Illustrated Edition)

“When Wilderness Was King employs a vivid portrayal of the Fort Dearborn massacre of 1812 as a backdrop. Sent by his father to bring back the orphaned child of a comrade-in-arms, young Wayland is distracted from his assigned task by what appears to be a more immediate crisis. Facing capture and death by Indians many times before he finally returns to the safety of his home, Wayland eventually discovers that the girl he has rescued from Indians and grown to love is indeed the same orphaned girl he was sent to find.”
Very interesting story about the Fort Dearborn Massacre.