Inside the structure a shaft was dug 28 m (91 ft) into the bedrock where the Djoser's burial chamber was situated.
There's no entry to Djoser's burial chamber anymore.
mnli hypothesis: There's no entry to Djoser's burial chamber anymore. premise: Inside the structure a shaft was dug 28 m (91 ft) into the bedrock where the Djoser's burial chamber was situated.