The Secret of Petrification (石化の秘密 Sekka no Himitsu) is the twelfth volume of Dr. Stone series.

Volume Summary


The Kingdom of Science is now in uncharted waters! Motivated to find out the meaning behind the cryptic message they intercepted, Senku and a select few prepare for a long overseas voyage. What they find on their first stop on their journey might provide a clue to the mysterious petrification that ended civilization.


Author's Comment

Volume 012.1 Intro Image.png

I think a lot about the designs of Senku's inventions. Depending on the level of technology available to him, the materials and finishing touches can change quite a bit. (If you're curious, Senku's at level 3 in this volume, which would be early industrial revolution.) But the most important factor is Senku's heart. What's he thinking? How much consideration does he give the villagers and their lives? I try to imagine his feelings and put them into the designs.

For instance, take Tsukasa's freezer apparatus shown above.

No matter how long the voyage takes— despite the passing seasons and earthquakes and changes to the waterfall— Tsukasa's device has to maintain a constant temperature, so that's how I designed it.

"Even while I'm away, Tsukasa will remain safe."

That sentiment of Senku's went into this design.

Riichiro Inagaki
Volume 012.2 Intro Image.png

The Dr. Stone anime has begun! And it's all thanks to your support. The anime is so fun that I find myself watching it over and over and over.

The image above shows an ad from the city streets back when the anime was screened in the U.S.

I guess you never know where Senku is going to pop up at this point.

Get excited!

Extra Pages


Volume 12 was published on September 4, 2019, during Japans Tankōbon ranking period of 2nd to 8th September 2019. Dr. Stone Volume 12 ranked 7/50 during that period selling an estimated 68,740 Tankōbon copies during its first week on sale.<ref>Dr. Stone Volume 12 sales from nowiki<ref>September 02 to September 08 2019</ref>


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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
Volume 7 535455565758596061
Volume 8 626364656667686970
Volume 9 717273747576777879
Volume 10 808182838485868788
Volume 11 899091929394959697
Volume 12 9899100101102103104105106
Volume 13 107108109110111112113114115
Volume 14 116117118119120121122123124
Volume 15 125126127128129130131132133
Volume 16 134135136137138139140141142
Volume 17 143144145146147148149150151
Volume 18 152153154155156157158159160
Volume 19 161162163164165166167168169
Volume 20 170171172173174175176177178
Chapters not yet in tankōbon format 179180181182183184185186187188189190191192
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