"You're ahead of time just one day," laughed John. "This is the 27th of the month."
"How do you make that out?" asked Bob. "Didn't we leave Port Darwin on the 26th?"
"Yes," admitted John.
"And the following evening we were at sea?'
"Granted. That was last evening—the 27th."
"Then any dunce can see that to-day is the 28th," said Bob witheringly.
"That's what I say, too," supported Paul.
But John only laughed harder, and this time Tom joined him.
"John's right," said Tom; "to-day is the 27th."
"It can't be," protested Bob. "You own up that yesterday was the 27th, don't you?"