Baron Marinous

Description

All that remains of the powerful elemental is a globe of what seems to be pure water, clouded by some unknown substance. The edges of the sphere seem to be clear until you turn it--as if the cloud actively prevents you from peering within.

Whatever happened to it--and to the ruins it was guarding--is still active in some way.

Only Onu, the Ancient of Lore at the Grove of the Ancients to the far south, would have a chance at knowing more.