It would be an 11 day fog event called Drought Island

The dragons would be:
-Sunrise Dragon
-Dry Dragon (New)
-Blue Fire Dragon
-Eruption Dragon (New)
-Firewolf Dragon
-Ra Dragon
-Magma Storm Dragon (New)

Dry Dragon would be like a skeleton with flames on its back.
Eruption Dragon would be a bit like Everest Dragon but he has lava pouring out of him.
Magma Storm Dragon would be a humanoid shape with clouds on his hands, with glowing yellow eyes and a very spiky tail.