Sunken wagon, buried chest, four scorpions and one very bad day in the dunes

“The party traveled north from Veythall along a desert road and discovered a sunken, half-buried wagon in the dunes, which turned out to be a trap sprung by giant scorpions, leading to a grueling multi-round battle including a fourth, larger scorpion. The party ultimately defeated all four scorpions and found a locked chest still waiting to be opened.”