"The Celestials Were Fooled"

Jake didn't know Joan's plan, so he was anxious throughout the day. 

When he was on the plane and didn't see the celestials, he tried to give more signals to his grandma, but he didn't know whether she got the signal or not. 

He used morse code relying on the frequency of his blinking, and even hummed some tunes that were actually the Billios Family's secret 'language'...

How come his grandma didn't know that he was being manipulated? She should have known, yet she didn't care. 

Just what the hell is going on?? 

Jake could only keep silent as he slowly entered the Teleportal along with Joan and the three celestials who were following behind. 

Unfortunately, the Teleportal was like an 'elevator', and it could detect the number of people using it. 

Even if these people were invisible.