The Secret of Chimneys - Ch 22
Agatha Christie
“Superintendent Battle was standing in the library at Wyvern Abbey.
George Lomax, seated before a desk overflowing with papers, was frowning portentously.
Superintendent Battle had opened proceedings by making a brief and businesslike report. Since then, the conversation had lain almost entirely with George, and Battle had contented himself with making brief and usually monosyllabic replies to the other’s questions.
On the desk, in front of George, was the packet of letters Anthony had found on his dressing table.
“I can’t understand it at all,” said George irritably, as he picked up the packet. “They’re in code, you say?”