“And that thing is worth money?”

“It’s worth more than all the diamonds you could pack in that case.”

“Mr. Dunn said the treasure was worth a million.”

“It is—and then some,” says Mr. Browning.

“But that—it’s nothing but a scribbling.”

“It’s the most valuable scribbling in America.”

“What is it?”

“Formulae,” says Mr. Browning.

“What are they?” says I.

“Just like recipes,” says Catty, “for making biscuits or pie.”