Just one example of why The Locked Tomb series is just the very best.

Harrowhark set her hands on the black stone crossbar of the door almost reverently, and pressed her ear to the rock as though she could hear what was going on inside. She stroked her thumbpad over the deep-set keyhole and pulled her hood over her head. “Unlock it,” she said.

“Don’t you want the honours?”

“It’s your key ring,” said Harrow unexpectedly, and: “We will do this by the book. If Teacher’s correct, there is something around here that is fairly hot on etiquette, and etiquette is cheap. The key ring is yours … I have to admit it. So you must admit us.” She held out the key to Gideon. “Put it in the hole, Griddle.”

“That’s what she said,” said Gideon, and she took the ring from Harrow’s gloved fingers.

via Gideon the Ninth by Tamsyn Muir 📚