substitution ciphers, including the Atbash. A little trick I learned at the Royal Holloway." Sophie
wrote the first half of the alphabet from left to right, and then,
beneath it, wrote the second half,
right to left. "Cryptanalysts call it the fold-over. Half as complicated. Twice as clean."
A
B
G
D
H
V
Z
Ch
T
Y
K
Th
Sh
R
Q
Tz
P
O
S
N
M
L
Teabing eyed her handiwork and chuckled. "Right you are. Glad to see those boys at the Holloway
are doing their job."
Looking at Sophie's substitution matrix, Langdon felt a rising thrill that he imagined must have
rivaled the thrill felt by early scholars when they first used the Atbash Cipher to decrypt the now
famous
Mystery of Sheshach. For years, religious scholars had been baffled by biblical references
to
a city called Sheshach. The city did not appear on any map nor in any other documents, and yet
it was mentioned repeatedly in the Book of Jeremiah—the king of Sheshach, the city of Sheshach,
the people of Sheshach. Finally, a scholar applied the Atbash Cipher to the word, and his results
were mind-numbing. The cipher revealed
that Sheshach was in fact a code word for another very
well-known city. The decryption process was simple.
Sheshach, in Hebrew, was spelled: Sh-Sh-K.
Sh-Sh-K, when placed in the substitution matrix, became B-B-L.
B-B-L, in Hebrew, spelled
Babel.
The mysterious city of Sheshach was revealed as the city of Babel, and a frenzy of biblical
examination ensued.
Within weeks, several more Atbash code words were uncovered in the Old
Testament, unveiling myriad hidden meanings that scholars had no idea were there.
"We're getting close," Langdon whispered, unable to control his excitement.
"Inches, Robert," Teabing said. He glanced over at Sophie and smiled. "You ready?"
She nodded.
"Okay, Baphomet in Hebrew without the vowels reads:
B-P-V-M-Th. Now we simply apply your
Atbash substitution matrix to translate the letters into our five-letter password."
Langdon's heart pounded.
B-P-V-M-Th. The sun was pouring through the windows now. He looked
at Sophie's substitution matrix and slowly began to make the conversion.
B is Sh... P is V...
Teabing was grinning like a schoolboy at Christmas. "And the Atbash Cipher reveals..." He
stopped short. "Good God!" His face went white.
Langdon's head snapped up.
"What's wrong?" Sophie demanded.
"You won't believe this." Teabing glanced at Sophie. "Especially you."
"What do you mean?" she said.
"This is... ingenious," he whispered. "Utterly ingenious!" Teabing wrote again on the paper.
"Drumroll, please. Here is your password." He showed them what he had written.
Sh-V-P-Y-A
Sophie scowled. "What is it?"
Langdon didn't recognize it either.
Teabing's voice seemed to tremble with awe. "This,
my friend, is actually an ancient word of
wisdom."
Langdon read the letters again.
An ancient word of wisdom frees this scroll. An instant later he got
it. He had newer seen this coming. "An ancient word of wisdom!"
Teabing was laughing. "Quite literally!"
Sophie looked at the word and then at the dial. Immediately she realized Langdon and Teabing had
failed to see a serious glitch. "Hold on! This can't be the password," she argued. "The cryptex
doesn't have an Sh on the dial. It uses a traditional Roman alphabet."
"Read the word," Langdon urged. "Keep in mind two things. In Hebrew,
the symbol for the sound
Sh can also be pronounced as S, depending on the accent. Just as the letter P can be pronounced F."
SVFYA? she thought, puzzled.
"Genius!" Teabing added. "The letter Vav is often a placeholder for the vowel sound O!"
Sophie again looked at the letters, attempting to sound them out.
"S...o...f...y...a."
She heard the sound of her voice, and could not believe what she had just said. "Sophia? This
spells Sophia?"
Langdon was nodding enthusiastically. "Yes!
Sophia literally means
wisdom in Greek. The root of
your name, Sophie, is literally a 'word of wisdom.' "
Sophie suddenly missed her grandfather immensely.
He encrypted the Priory keystone with my
name. A knot caught in her throat. It all seemed so perfect. But as she turned her gaze to the five
lettered
dials on the cryptex, she realized a problem still existed. "But wait... the word Sophia has
six letters."
Teabing's smile never faded. "Look at the poem again. Your grandfather wrote, 'An
ancient word
of wisdom.' "
"Yes?"
Teabing winked. "In ancient Greek, wisdom is spelled S-O-F-I-A."
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