Context: Yamino \'s switchblade starts to slide into the widening crack , but Anzu saves it . The trap door groans and creaks but it \'s opening more and more , a foot at least , before it stops . " Guys , we \'re coming for you , " Honda is shouting , now practically sitting on the rod ; Bakura grabs the rod as well and hangs all his weight from it , opening the door a few inches more . It \'s getting obvious that they \'re going to have to break whatever mechanism is holding the door shut before they can get it any more open . But by now there \'s light and - " Is that smoke ?
Question: Why is the narrator and others trying to get the door open ?
Option 0: There is a class being held on the other side .
Option 1: There is a switchblade on sale in the next room .
Option 2: There is a crack in the door and they want to see the other side .
Option 3: There is danger .
Answer: 3