The Sage of Einar
Max, a Mexican military man, loses everything in a mission that goes wrong so he ends up reviving in the year 830 at the beginning of the Viking Age, as the son of a Jarl in exile named Einar. Einar can overcome the challenge of surviving a hostile world where only the strongest can live. It is up to you to find out.
The Greek fire formula
Kassia, who had seen the Nordic fire, was surprised by what she hugged her little daughter Katherine.
"You saw, little girl, Dad managed to create a fire more amazing than the Greek fire that saved the empire for thousands of years."
Raising her head with pride, Kassia turned to Evaristus. "I think you lost the bet and I will have to say the Greek fire formula to my husband.
How can you see it created a Nordic fire more powerful than the Greek fire that once saved the empire? "
Evaristus sighed and smiled as he looked at Kassia. "I guess, just like your mother, you know how to choose your partner.
I think that shows how good her mother was to be able to know with whom she should have children, but as the representative of the Imperial Guard already decided, it would not matter to her that the secret of the Greek fire spreads.
I believe that you are the only person who should know of its existence outside the imperial ports of Constantinople.