Vikings with horns?
Peasants calling themselves vikings? Viking meant "pirate".
An advanced civilisation, that apparently has sufficient medical technology to prevent death indefinitely, disintegrating people to get chemicals that they should be able to synthesise?
Electric eels in Northern Europe? They're from the Amazon.
Electric eels providing enough electrical power to be used for such a scheme?
Electric eels causing lightening-like sparks?
Peasants calling themselves vikings? Viking meant "pirate".
An advanced civilisation, that apparently has sufficient medical technology to prevent death indefinitely, disintegrating people to get chemicals that they should be able to synthesise?
Electric eels in Northern Europe? They're from the Amazon.
Electric eels providing enough electrical power to be used for such a scheme?
Electric eels causing lightening-like sparks?