Dr. Stone Wiki
Dr. Stone Wiki

The Age of Exploration Arc is the eighth arc of Dr. Stone as well as the first arc of the Source of the Petrification Saga.


Ominous Message

Why-man makes contact with the Kingdom of Science.

Senku's group proceed to test their motorboat, soon after the "crazy-strong" radio tower is turned on for the first time. They message that saturated the radio frequency the Kingdom was using consisted of one word being repeated over and over: "Why?".[1]

The mysterious call shocks the members on the boat, as Chrome demands they stop while Senku responds to the person via their radio by calling them out as the source of the petrification. The signal immediately stops, leaving the group to speculate on who or what the signal came from.

Returning to Japan, the group inform their allies of the news. Concerns are raised about the mysterious transmissions. Some are worried until Taiju says Senku can handle it. Kohaku joins in this faith by noting on how Senku, Ryusui, Ukyo, Gen, and Chrome are their wise Generals in this matter. Indeed, in the headquarters on Roppongi Hills Mori Tower, a meeting is held by the Generals on how this new entity: dubbed the Why-man by Ryusui Nanami. All members come up with a theory. The group chose to assume the Why-man is an enemy, as the worst that can happen is they over-prepare for someone who is in fact an ally.[2]

Story Impact


  • Taiju is finally told the love potion, Senku made was gasoline.
    • Ryusui remarks that they have arrived at the point where Senku left off in the old world.

Characters Introduced

Inventions/Items in Order of Acquisition

  • Wheat Field
  • Mirror
  • Camera


  1. Dr. Stone Manga: Chapter 95, Pages 17-18
  2. Dr. Stone Manga: Chapter 96

Site Navigation

[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
The Truth of the Petrification Saga
New America City Arc
Chapters 139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169
South America Arc
Chapters 170171172173174175176177178179180181182183184185186187188189190191192193
New Stone World Arc
Chapters 194195196197198199200
Europe Arc
Chapters 201202203204205206207208209210211