Jack: During the Middle Ages it was very common, and it became a slang word meaning "man", as seen in the term jack-o'-lantern as well as others. Diminutive of John, meaning "Yahweh is gracious"

The Tempter

Made for @BlackAshe's monster mayhem

"Won't you follow me?"

You're walking alone, down a path deep in the Irish woods. The moon is high and there is a strange man with an uncanny grin, carrying a lantern.

Fair warning that he might try to kill you