“What’s the first letter?”

“A.”

“What’s the second?”

“B.”

“And the third?”

“C.”

“What’s the twenty-sixth?”

“Z.”

“You know your alphabet anyway,” laughed Grant. “Now this is how the code works; a is the first letter so we call it one, b is the second so we call that two, and so on all the way through. For instance, the letter s would be number nineteen, and t would be twenty. Do you see the idea?”

“Yes, I see that,” said George. “Explain the rest.”