The five Dyna Stones weighed around forty kilograms, test tube included.
Werther had thrown the Dyna Stones from several thousand meters in the air.
Without Observation Haki, he could never have landed them precisely on Whole Cake Island from that height.
The Dyna Stones' weight and the force of their fall sent them hurtling faster and faster.
Five thousand meters. Three thousand. One thousand. Five hundred.
By the final five hundred meters, they had become a ball of fire. Even then, they had not exploded.
Heat alone would not detonate Dyna Stone. It had to come into contact with oxygen.
Despite its name, Dyna Stone contained no gunpowder.
It was a product of Vegapunk's experiments.
While studying why Adam Wood was as strong as steel, Vegapunk had discovered a remarkable substance in its resin.
When exposed to air, the substance released enormous kinetic energy and exploded, killing insects that might otherwise harm the tree.
Even the toughest trees had natural enemies.
Vegapunk had people collect vast quantities of Adam Wood resin, and Dyna Stone was born.
With the Dyna Stones still five hundred meters above Whole Cake Island, some people below noticed the rapidly falling "fireball."
"What is that? This is bad. Very bad."
A beautiful woman with pink hair and curled eyebrows somewhat like Sanji's looked up at the sky.
She wore unusual shoes that made popping sounds as she walked and black gloves. A 6 was tattooed on each of her pale legs, making 66 together.
Strangest of all, a pair of wings extended from her back, resembling a butterfly's, or perhaps a moth's.
She was not a member of the Big Mom Pirates, but of the Vinsmoke Family of the War House.
She was Vinsmoke Reiju, the Vinsmoke Family's eldest daughter and the older sister of Sanji,