Chapter 744: Hunted by an Ichthyosaur

Reef and Brother Black seemed rather composed when the abrupt shaking occurred. After all, they had experienced naval warfares in the Pirates of the Caribbean World.

Instead, Zi was startled and her expression turned sour.

Meanwhile, Sheyan's eyes were shut as he carefully felt the tremors of the submarine.

All of a sudden, he reached to grab his railing and a second later, another round of violent tremors occurred! This time, it seemed as though the entire submarine swayed over 60 degrees to the side. If not for the contestants grabbing on their bedside railings, they would've fell onto the floor.

Zi's countenance changed drastically.

"The submarine is shaking so violently, seems like an huge crisis!"

Following that, Sheyan hopped off his bed. Moving deftly, he shut the watertight bulkhead of the region and spun its rotating valve speedily.

Every cabin region in the submarine had an extra watertight bulkhead to preserve the submarine in case of leakages.