Rainbow Goblins

They say the goblin treasurers once guarded the vaults of Kundun himself. When their master fell, they dragged the chests away and scattered across the continent - and ever since they creep out into the light, clutching the loot to their chests. The colour of the chest tells you what lies inside; the hoarse giggling tells you nobody means to hand it over.

They are cowards, but no weaklings: whoever comes for a chest had better come ready for a fight. Yet a goblin that is caught always pays - with a jewel from its own chest.

When they come out

The goblins show themselves every day at 02:20, 06:20, 10:20, 14:20, 18:20 and 22:20, server time, and vanish again after an hour. All four colours come at once, each to its own land.