Inside the structure a shaft was dug 28 m (91 ft) into the bedrock where the Djoser's burial chamber was situated.
The shaft seems scary to go in, but it's absolutely safe for visitors.
mnli hypothesis: The shaft seems scary to go in, but it's absolutely safe for visitors. premise: Inside the structure a shaft was dug 28 m (91 ft) into the bedrock where the Djoser's burial chamber was situated.