"Michel Strogoff: De Moscou a Irkoutsk" by Jules Verne is an adventure novel published in 1876. Michel Strogoff, courier to Russia's Tsar Alexander II, must journey from Moscow to Irkutsk to warn the tsar's brother of an invasion by Tatar forces led by a traitor. The five-thousand-kilometer route becomes a three-month ordeal of pursuits, betrayals, and dangers including wolves, bears, and capture. Accompanied by the determined Nadia Fedor, Strogoff faces seemingly insurmountable obstacles in his race against time. (This is an automatically generated summary.)
These books are free to read. Each is in the public domain in the United States; check your own country's rules before you copy or share one.