Chalice (alert)
From Tardis Wiki, the free Doctor Who reference
4Chalice was an alert used in the 67th century. It was the highest threat level used on the Tsuranga.
Ptings were ranked Chalice. (TV: The Tsuranga Conundrum)
Behind the Scenes
The Ninth Doctor had previously stated Mauve was the highest danger level recognised in the universe. Either terminology changed over the centuries or some species have different warning systems.
