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Marked with an X of Wisdom ( (えい) () (みち) (しるべ) Eichi no Michishirube) is the one hundred seventy second chapter of the Dr. Stone manga.

Summary

The chapter begins with the escaping team discussing their plans. Some are excited to find the source of the Petrification, but others are worried about traversing the Amazon. Senku wants to take the long way around, picking up fuel periodically as they circumnavigate South America, as it is safer. The problem is, Stanley is chasing them, and with a much faster vessel.

On one of their refueling stops, Taiju spends some extra time chopping trees so everyone else can take a break. While cutting, he notices giant glowing letters in the sky spelling "HELL" and immediately rushes over to everyone else to tell them Why-man has made an appearance. Looking closer, the team discover they're kites with writing on them.

In the morning, they go seek out where the kites are tied to, and find a pumpkin shack high in a pair of trees. Chelsea hops down, clothed in a giant pumpkin. Relieved there's other people around, Chelsea immediately jumps to hug Suika.

After receiving a set of glasses and proper clothing, Chelsea introduces herself to everyone, Xeno knowing her from the meeting they were at before the petrification happened. She hadn't found the American Colony because her eyesight was too bad to read the sign, and she had gone south instead. Her kites were also meant to spell "HELP", but she ran out of paint.

Sensing an opportunity, Senku asks her if she knows a shortcut through the Amazon which she does, but simply going by foot is a death sentence. She suggests motorcycles, and Senku's says they'll have to build them.

Characters in Order of Appearance

Chapter Notes

  • Senku plans to reach the source of the petrification by circumnavigating South America.
    • The group have to keep stopping in order to get more fuel for their voyage.
  • Chelsea the geographer is introduced.
    • She is familiar with Xeno from meeting at the Science Expo thousands of years ago.
    • She overheard Stanley’s order and stayed conscious for thousands of years, but couldn't read the sign telling her to go north.
    • She revived three years after Xeno and the other early Americans.
    • She endured a full year alone while suffering from nearsightedness.
  • Chelsea knows land-based shortcut to get to the source of the petrification.

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Chapters and Volumes
Volume 1 1234567Extras
Volume 2 89101112131416Extras
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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 197198199200201202203204205206207208209210211212213214
[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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