The Undying Soldier is a mythic warrior from Russian folklore purported to have captured Death.
According to an old Russian folktale, the soldier returned home after fighting in a war. Near the end of his journey, the soldier began to exhaust his supplies. He met a strange beggar. Being a generous man, the soldier gave the beggar his last ration. Rewarding his kindness, the beggar gave the soldier his Mystical Sack and told him it would catch any creature then vanished. The soldier used the sack to catch many animals to eat and returned home at least. The soldier used the sack to help others and became a wealthy man loved by all.
However, the war took an unexpected turn when Vigo unleashed an Underworld Horde. The soldier used his sack to trap Death and became invincible. The soldier drove the rest of the horde back to the underworld. Even time caught up with the soldier. While his body could not die, he aged and fell terribly ill. The soldier tried to bargain Death's release if it would take him to the next life. Death refused and cursed him. The soldier wandered the earth, always sick but unable to die. He vowed never to use the sack again.
The soldier eventually settled in a deep region of Siberia. In mid-September 1912, John Horace Tobin discovered the soldier's body and showed it to Mikhael Gallon. However, Tobin stared off at Death, who was hovering above the soldier's corpse.