ik this is stupid to ask but i just started reading and in like chp2 or chp3 whyd they boa...

I believe they think the instructors had smth to do with it and they had to be careful or both of their lives would be in danger

They thought the bus driver killed the teacher, so if they confronted him or let him know they were suspicious, he might hurt them too. They wanted him to not know they knew.

thank uuu

tyy!!