Help: Getting Dragon Flame Sac

[Awesome]

Any idea where to get Dragon Flame Sac after killing Vandal Dragon? I need 1 more to create Ignis Roar weapon.

[No' Name]

I mean after visiting Lenegis, and having the option to port back to diff aera's. There's Dragon's literally Scattered across fields...

Most notably, the area near the Ocean, forget it's name, but usually has giant Lizards swarming the place, but once you get out of Lenegis, you can find at least one Dragon, near the entrance, a green one.