Eraqus noted that moment of curiosity, but didn't comment on it. Maybe it would be in his best interests to leave out info on the Keyblade unless it became absolutely relevant...at least until he felt more comfortable.

"This is a realm of dreams. Everyone here seems to be asleep in the actual world, and there is little knowledge yet of how to actually awaken. Creatures called Nightmares will attack anyone here on sight, and must be fought off. They're distinguished by their counterparts by coloring..." he nodded at her Komory Bat. "...Although I get the sense you may already be aware of this."