```
Everyone quickly returned to their compartments.
He Ao closed the door and glanced at the time—it was thirty minutes again.
He searched the room once more, but everything remained unchanged, with blank areas still blank.
Then he returned to the door and continued to pull and push at it.
Twenty-some minutes quickly passed, and even with He Ao's physical condition, such high-intensity activity made him break out in sweat.
In the last two minutes before the countdown reached zero, no matter how much He Ao pulled at the door, as long as he didn't touch the final boundary, the compartment showed no response whatsoever.
It seemed as if the train had given up.
So He Ao let go and took a rest.
Click—
When the countdown returned to zero, he opened the door again.
Almost simultaneously, doors on both sides also opened.
The blonde woman and Lin Chichi stuck their heads out at the same time.