In this story, an aeroplane named Seven is using a secret energy source. But the assistant engineer might know what it is. This is Part 3 of 5. It was 12:00pm and Seven was playing cards with Zack the pilot in their hangar. Seven picked up a few cards and slammed five down on the table. “Once again, I’m winning, Zack. When will you ever learn? You can’t beat me—Hah!” Zack, looking frustrated, said, “Next time I’ll beat you. I’m going to practice online. You’ll see. Next time.” Tobee arrived for work and went straight to the office. He noticed the security camera system was blinking, alerting some kind of action needed. Tobee took care of it and turned to exit the office. But what was this? In front of him there were several huge barrels labelled ‘7-Up’. Tobee thought that it was illegal to use 7-Up. He understood it was a cheaper fuel source, but he believed it wasn’t worth the risk. Tobee believed in the government’s decision to ban 7-Up as a fuel source. Tobee stepped out into the main hangar and confronted Zack. “Boss? There are seven giant barrels of 7-Up in the office. Have you been giving it to Seven? You know that’s illegal, right? Why are you doing this? You’re risking your entire business.” Zack looked undeniably suspicious and worried. He struggled to speak confidently and said, “Oh that… that’s left over from my son’s 14th birthday party last week. Want some?” Tobee said, “Uh… okay. But… I’m a bit… hurt that you didn’t invite me…” Zack laughed nervously. “Yes… I only just invited family and friends… Sorry, Tobee. Maybe next time. Uhh, feel free to take some home if you want.” As Tobee left the main hangar, Seven whispered to Zack, “Phew, that was a close one. Thankfully he bought it.” Tobee didn’t believe Zack’s improvised story, but he tried to play along. He didn’t want Zack catching onto him. Tobee thought that he’d discover the truth for himself.