TRUJILLO, Peru — For six hundred years, the royal tomb of the Chimu kingdom sat beneath the sands of northern Peru while the region’s grave robbers came and went, took nearly everything else, and, for reasons the archaeologists are still working through, missed this one.

The discovery, uncovered by a team of Peruvian archaeologists within the walled complex of Utzh An, the former great Chimu palace, is being called “the discovery of the decade” by people who have seen a great many tombs. That is a high bar, and they cleared it, because it is the first intact elite Chimu burial ever found, which is a sentence that, in the field, does a lot of quiet screaming.

"The looters came for six centuries and cleared out the entire neighborhood. This tomb was not in the neighborhood. As far as anyone could tell, it was not on the map."

What makes the find notable is not that it is old. The Chimu civilization predates the Inca, which is exactly the sort of thing you would expect a northern coast empire to do. What makes it notable is that it is intact. The burial held the remains of at least 38 people along with metal weapons and other relics, a headcount that is more people than most of us have had dinner with and which suggests the Chimu had a generous idea of a funeral.

THE TOMB, AS UNDERSTOOD SO FAR

  • Age: Roughly six centuries, undisturbed. The entire point.
  • Who it was: The Chimu elite, a pre-Inca kingdom that ran the northern coast of Peru before the Inca showed up and, in the specific, took over.
  • What's inside: At least 38 burials, metal weapons, and relics being examined one centimeter at a time. That is the speed of the work, not the speed of the excitement.
  • Why it survived: The sands. The specific sands. A detail the looters never prioritized.
  • Who found it: A team that realized only slowly, over the course of the excavation, that the ground was doing something.

The method of discovery is worth noting, because it is the most honest description of how most major finds actually happen. The team was not looking for a royal tomb. The team was looking for a tomb, and then kept looking, and then realized, one centimeter at a time, that the ground had been, all along, doing the thing.

There is, as far as the researchers can tell, no secret door. No warning sign. No note from the looters that reads “sorry, we missed this one, try again in six hundred years.” There is just sand, and under the sand, a whole civilization’s idea of a good send-off, sitting exactly where it was supposed to sit, which is to say, out of the way.

At press time, the excavation was ongoing, the 38 burials had not yet all been cataloged, and a small committee had been formed to determine what, precisely, to do with a tomb that was hidden better than a great many people who had a very specific financial interest in finding it.