Raise the Smoke Signal (狼煙をあげろ Noroshi o Agero) is the eighth chapter of the manga Dr. Stone.


At the earliest opportunity, Taiju finds the courage to stir Yuzuriha over the moment 3700 years ago. He explains that he only tells her what he wanted to say 3700 years ago when the world is saved. Yuzuriha declares herself in agreement and Taiju happily proposes to tell her everything that happened before her resurrection.

When trying to make gunpowder, they cause an explosion. Senku sees this as success. He explains that he will offer negotiations with Tsukasa, but if the negotiations break, he will have to kill Tsukasa.

Later, Yuzuriha detects a signal, a rising smoke in the distance. In desperation, Taiju asks what to do. React and take the risk of being found by Tsukasa or ignore and let the hope for more survivors die? Senku decides to react with his own signal, although it contradicts his "logical intuition".

Character in Order of Appearance


  • The right balance of the amount for the manufacture of gunpowder is according to Senku 75% of saltpetre, 10% of sulphur and 15% of charcoal. The last step is to hit and harden it.

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Arcs & Sagas
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
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Episodes 131415
Village Origins Arc
Chapters 4142434445
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Stone Wars Saga
Vs. Hyoga Arc
Chapters 4647484950
Episodes 1819
Communications Arc
Chapters 5152535455565758596061626364656667686970717273747576777879808182
Episodes 2021222324
Source of the Petrification Saga
Age of Exploration Arc
Chapters 8384858687888990919293949596979899 100
Treasure Island Arc
Chapters 101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138
The Truth of the Petrification Saga
New America City Arc
Chapters 139140141142143144145146147148149150151152153154155156

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