"And you're sure that when I get to Mytilene, I'll know the task when I see it?"
"Oh, very well. Most of the gods I've met, and I've met entirely too many, have told me the truth eventually. I'll have to take you on trust."
"As I do you." Mercury's face and body were shining with delight, like the sun thinly veiled in cloud. "Give me your hand. He took it and clasped it firmly, like merchant sealing a bargain. "Now we're in my part of the world and I can do anything. Quickly, let me teach you the charm."