H. Rider Haggard 
Brethren 

Sir Henry Rider Haggard was an English writer of adventure novels set in exotic locations, predominantly Africa, and the creator of the Lost World literary genre. His stories, situated at the lighter end of the scale of Victorian literature, continue to be popular and influential. He was also involved in agricultural reform and improvement in the British Empire. This novel is about adventure, bravery, love, war. Two brave knight brothers love their cousin Rosamund. Suddenly Rosamund got kidnapped and the knights start their journey to save them! (Excerpt from Goodreads)