“There was a date inscribed on the base, 1234, and words inscribed around it: NEPHILIM: FACILIS DESCENSUS AVERNI.
“Is that meant to be the Mortal Cup?” she asked.
Jace nodded. “And that’s the motto of the Nephilim—the Shadowhunters—there on the base.”
“What does it mean?”
Jace’s grin was a white flash in the darkness. “It means ‘Shadowhunters: Looking Better in Black Than the Widows of our Enemies Since 1234.’”
“Jace—”
It means, said Jeremiah, The descent into Hell is easy.”