Behind them all MacDonald growled loudly: "There's got t' be something done with these damned beasts of furriners.
It's gettin' so no woman ain't safe at night!" Twenty minutes later they reached the bungalow.

Leaving Joanne and Peggy inside, now as busily excited as two phoebe birds, and after Joanne had insisted upon Aldous sleeping at the Blacktons' that night, the two men accompanied MacDonald a few steps on his way back to camp.
As soon as they were out of earshot Blackton began cursing softly under his breath.
"So you didn't send that damned note ?" he asked.

"You haven't said so, but I've guessed you didn't send it!" "No, we didn't send a note." "And you had a reason--you and MacDonald--for not wanting the girls to know the truth ?" "A mighty good reason," said Aldous.

"I've got to thank MacDonald for closing my mouth at the right moment.

I was about to give it away.