Early the next morning, the clone of Kone that Cain had summoned reported that she had found signs of a Dragon down a vent tunnel in the mountain that was far too small for any grown dragon to have fit through. Even with Su transformed into a petite Dryad, and Kone's own diminutive size, she was having problems fitting through some of the tighter sections of the tunnel, but her detection spell still showed that there was a Dragon of some sort up ahead.
"I will be right there. I can transform into something even smaller, and I will merge with you until we are through the tight spots, then let you lead the way again." Cain decided before sneaking out of the bedroom without waking the others.
If they were up, they would want to come along, and that would totally defeat the purpose, as well as requiring him to cast multiple transformation spells so that they all would fit through the tunnel.