“What does it say? How did they solve it?” Bianca scrolled down with her finger. “They divided the numbers thirty-two, eighteen, ten, and thirty-six by two to get sixteen, nine, five, and eighteen. Swapping those numbers for letters of the alphabet, that spells P-I-E-R. The numbers were followed by the letters F and R. They figured the letters represented six and eighteen. Using the same logic, they divided those numbers by two, coming up with C and I. If you do the reverse of the first part of the message and exchange the letters for numbers, that makes three and nine. Put it all together,
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