[ He knows that Iris Messages are out and so are phones or other electronic devices but he'd been hoping that maybe they had met someone who could deliver a message to them. Looks like that's out. ]

The only way I can think to get a message to Camp is if you happen to cross paths with one of Hypnos' kids. That's how I did it last time IM's were unreliable. I don't think trying to send a letter via wind nymph would work as well for you guys.

[ Calypso will have to get used to having mortal problems. ]