No one is invulnerable to temptation, Damian.
I think of it as remaining invulnerable, something you taught me.
Siegfried bathed in the blood of heals in g g healing the dragon he slew and thus became invulnerable; the blind emperor Theodosius recovered his sight when a grateful serpent laid a precious stone upon his eyes; Cadmus and his wife were turned into serpents to cure human ills.
Sweden's peculiar geographical position made her virtually invulnerable for six months out of the twelve, her Pomeranian possessions afforded her an easy ingress into the very heart of the moribund empire, while her Finnish frontier was not many leagues from the Russian capital.
But their artillery and superior maritime science made them almost invulnerable at sea, and their principal military achievements consisted in the capture or defence of positions accessible from the sea, e.g.