Dagger75
Epic Commoner
In my game dragons knew what was going on around them up to there keen sight, blind sight ability. The dragon hears, sees, smells, tastes and feels all the is around hime. Dragons even feel changes the in air pressure and the magnetic field around them so sneaking up on one of them is impossible. I would say they here the scroll being unraveled and the caster uttering the words for it. Make those dragons a little bit nastier.