Okay, so it's probably safe to assume he'll have their attention the moment he opens the door since they're, uh. Very close to it obviously.
So what he's going to do it close it and hope there's like a rope or handle to hold it closed until it sounds like one or both of them are on the door, or close enough to it to be smacked with it when it's opened. He and Toriel (the two largest of the group) will then muscle the door open with the intent of forcing one or both of them either on the other side or to back away long enough for the group to get out of the basement.
If this is successful, Enoch and Shiro will attempt to distract them and lead them off east towards 126 until they reach it, where they'll barricade themselves in, while the other three try to escape in the other direction.
no subject
So what he's going to do it close it and hope there's like a rope or handle to hold it closed until it sounds like one or both of them are on the door, or close enough to it to be smacked with it when it's opened. He and Toriel (the two largest of the group) will then muscle the door open with the intent of forcing one or both of them either on the other side or to back away long enough for the group to get out of the basement.
If this is successful, Enoch and Shiro will attempt to distract them and lead them off east towards 126 until they reach it, where they'll barricade themselves in, while the other three try to escape in the other direction.