You pick up the scroll labeled "Skull_Lucario," and see small sketches of dragons as well as information about them.

Dragon	Name	Stage	Views	Unique Views	Clicks
	Nintoryu	Adult ()	4,800	1,482	133
	Midorii	Adult ()	2,904	529	31
	baranohana	Adult ()	2,921	524	37
	nouryoku	Adult ()	2,916	527	29
	Bokuseki	Adult ()	1,220	565	16
	Shiroi Ryu	Adult ()	1,172	563	19
	Mizu no Ryu	Adult ()	1,164	561	18

If you would like your own dragons, you'll have to go to the Cave Entrance.