Anyway, this creature is basically the French form of a wyvern. It is a dragon without wings and fiercely guards its treasure. You are sure to die from its attack... unless you do the one thing that makes it not attack you - strip off your clothes.
Yep, this beast will not attack anyone without clothes. This, I know is true, because I did an exhaustive Google search and not one nudist colony has ever been attacked by a wivre.