Investigate (2)

"Looks like there's still a lot of things to do… but," Keith could not help but let out a big yawn.

"Let's sleep first. We'll find out what will happen later." 

"Yeah. Rest to recharge our batteries." And the two tacitly sleep right across each other. They must have been too tired throughout the night that they immediately fell asleep after their head hit their elbows they used as pillow.

Not long after, the two were awoken by a sharp light peeking through the window. Lucien got up and rub his aching eyes. The sky was completely bright. 

Was it already 6:30 in the morning?

The teacher instructs them that they must come as early as 6:30 in the morning. As seniors, they have to study for the upcoming final and college exam. Their school life will be very busy.