Sia seemed to already be aware of what was happening and why the ground was shaking. She could sense it reasonably well and knew that whatever happened with that beam was the cause of its awakening. Even though she muttered, those close to her heard her, which caused Henry to look towards Rebecca and Rebecca to glance toward him.
"Then we need to move! Everyone buckle up. We need to get out of here!" Rebecca exclaimed, which caused everyone to cancel what they were doing and return to their seats and strap in. This allowed Sia to move freely, but she didn't get to go anywhere since Henry took her by the waist and sat her down beside him, then forcibly strapped her in.
