Sir Clinton saw that the Inspector wished to ask a question, but he silenced him by a glance.
“One more point, and we’re done, I think,” he said, turning to Joan. “Can you give me a rough idea of the time when the cry of ‘Murder!’ was raised? I mean, how long was it after you had left the museum yourself?”
Joan thought for a few seconds.
“It took me three or four minutes before I came across Mr. Clifton, and we were together—how long would you say, Michael?—before we heard the shout?”
“Not more than five minutes,” Michael suggested.
“That’s about it,” Joan confirmed. “That would make it about eight or nine minutes, roughly, between the time I left the museum and the time we heard the shout.”
“About that,” Michael agreed.
Sir Clinton rose and closed his notebook.
“That’s all you have to tell us? Everything that bears on the matter, so far as you know?”
Joan paused for a moment or two before replying.