The crones huddled in their secluded hut, brewing merrily.They startled as a voice called from the entrance, "Are you well?"
"We are," said one.
"For now," said another.
"Supplies are running a bit low," mentioned the third.
"I can fetch what you need," offered the voice.
"What do you wish in return?"
"The secret to your health."
They agreed, gave the list and it was fulfilled.
"So what is your secret?"
"Wash your hands; now go."