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Cryptography Science ( (あん) (ごう) (つう) (しん) () (がく) Angō Tsūshin no Kagaku) is the one hundred and thirteenth chapter of the Dr. Stone manga.

Summary

Kohaku has discovered the location of the Soyuz capsule, but is unable to communicate this information to Senku and the science team. While they're training for the harem, Senku tells Kohaku to keep an eye out for a little mouse. She quickly captures the small mouse-like vehicle while Amaryllis makes up an excuse for her.

Gen tells them that the vehicle is to be used to send an SOS letter if they need help, but none of them know what a letter is. Ginro distantly remembers Kinro learning about letters in the form of the alphabet, but Ginro's lie that he learnt them too was seen through almost immediately. Instead, Kohaku comes up with a few pictographs for Gen to decipher.

They send the vehicle back with a few drawings on it in blood. After some time, Gen figures out that their message spells out "platinum", meaning they've found the Soyuz capsule.

Characters in Order of Appearance

Chapter Notes

  • Senku sends a small mouse robot so the harem infiltrators can send back messages.
    • None of them are literate.
  • Kohaku sends several pictograms back since she can't write.
  • Gen deciphers it, showing that she wrote "platinum".

Trivia

  • The cover page highlights an Enigma Machine, a cryptography device used by the Nazis in World War II. The device was eventually cracked by Bletchley Park in the United Kingdom.

Site Navigation

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Chapters and Volumes
Volume 1 1234567Extras
Volume 2 89101112131416Extras
Volume 3 17181519202122232425Extras
Volume 4 262728293031323334Extras
Volume 5 353637383940414243Extras
Volume 6 444546474849505152Extras
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Volume 15 125126127128129130131132133Extras
Volume 16 134135136137138139140141142Extras
Volume 17 143144145146147148149150151Extras
Volume 18 152153154155156157158159160
Volume 19 161162163164165166167168169
Volume 20 170171172173174175176177178
Volume 21 179180181182183184185186187
Volume 22 188189190191192193194195196
Chapters not yet in tankōbon format 197198199200201202203204205206207208209210211212213214215
[v  e]
Story Arcs
Prologue Saga
Stone Formula Arc
Chapters 1234
Episodes 12
Vs. Tsukasa Arc
Chapters 56789101112
Episodes 345
Ishigami Village Saga
Kingdom of Science Arc
Chapters 131415161718192021222324252627282930313233
Episodes 5678910111213
Village Games Arc
Chapters 34353637383940
Episodes 131415
Village Origins Arc
Chapters 4142434445
Episodes 1617
Stone Wars Saga
Vs. Hyoga Arc
Chapters 4647484950
Episodes 1819
Communications Arc
Chapters 5152535455565758596061626364656667686970717273747576777879808182
Episodes 20212223242526272829303132333435
Source of the Petrification Saga
Age of Exploration Arc
Chapters 8384858687888990919293949596979899 100
Episodes 35
Treasure Island Arc
Chapters 101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138
Episodes
The Truth of the Petrification Saga
New America City Arc
Chapters 139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169
Episodes
South America Arc
Chapters 170171172173174175176177178179180181182183184185186187188189190191192193
Episodes
New Stone World Arc
Chapters 194195196197198199200
Episodes
Globetrotting Arc
Chapters 201202203204205206207208209210211212
Episodes
Stone to Space Saga
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