This has been bugging me.
A character can encounter the space, a dragon scale on the space, or another character on the same space, of course provided the dragon scale doesn't match the current Dragon King. Otherwise you have to encounter the scale.
Let's say you decide to encounter a space with such a Dragon Scale. ( a non-King scale). There's an undefeated Enemy from a Dragon card on this space. So you encounter the Enemy, and do not draw another Dragon card. Do you get to claim the scale if you defeat the Enemy?