Originally posted by redgreen999:

For the skeleton there was no chest. It was just by itself. Not sure of Silver necklace. But I made a big hole as deep as could go and nothing else.

Had this same experience once. Nothing but a skeleton no matter how much we kept digging, yet the bone wouldn't stop pinging.

Good to know what's been commented about the proper treasure ones with chests, though. Will come in handy for sure.