Medusa beams at him, and leads him out of the cavern. Down the tunnel, turn a corner and she picks up an oil-lamp. Down some steps, and there. The oil-lamp isn't perfect, but there is enough light to see that there is a lot of treasure - chests, coins, fabric, gold and silver and other metals. Just hints of it, of course, but the Gorgons have been collecting an awfully long time.

"If you want to see better, um...can you conjure up enough light?"