Carter nodded. He took a sheet from his pocket, and read aloud:

“Come at once, Astley Priors, Gatehouse, Kent. Great developments⁠—

Tommy

.”

“Come at once, Astley Priors, Gatehouse, Kent. Great developments⁠— Tommy .”

“Very simple,” said Sir James, “and very ingenious. Just a few words to alter, and the thing was done. And the one important clue they overlooked.”

“What was that?”