Principal Waller soon put in a code to unlock the doors.

'Boom-Tube access granted,' The computer said. 'Welcome, Principal Waller.'

"Wow!" Supergirl and Superboy said as they came into the room.

"Welcome to the Boom-Tube," Mo smiled. "We have a portal to everywhere that a hero is called away to."

"She's right," Principal Waller added as she showed them. "Skartaris, Atlantis, Koragun, Florida..."

"Florida?" Superboy raised an eyebrow.

"Lots of strange super-villain activity there." Principal Waller replied.

"Wow." Superboy said.

An old woman was soon showing winning at Bingo.

"At Super Hero High, you're learning how to be a superhero," Principal Waller told the kids. "Not just for Metropolis or Earth, but the entire universe counts on you heroes."

"Then why is this room locked up?" Superboy asked.

"Why do you think?" Mo replied. "Apocalypse."

Principal Waller nodded before showing them something. "Years ago, Darkseid: the ruler of Apocalypse, hijacked the Boom Tubes and led his army to Earth," she then began to explain. "Our heroes nearly lost the battle against Darkseid."

"Whoa." Superboy said.

"Now, for everyone's safety, I'm the only one who can access the Boom-Tube, and sometimes if necessary, Monique will help me." Principal Waller continued as they came out of the room.

"We heard the alarm," Bumblebee said as she zoomed over with Hawkgirl and Flash. "Did we finally catch our bad guy?"

"If it isn't my favorite Junior Detectives Society?" Principal Waller smiled. "No bad guy, but I did find a couple of superkids. Make sure they get to the dorms," she then walked off with Mo. "Good night, students."

"We kind of got a little lost." Superboy told Bumblebee, Hawkgirl, and Flash sheepishly.

The others soon helped Supergirl and Superboy out with the books.

"Thanks!" Supergirl smiled to that.

"Let's go, post-haste!" Hawkgirl added.

"So you three are part of a detective group?" Superboy smiled out of interest.

"More or less, yeah," Bumblebee smiled back. "We're hot on the trail of a big case! Security breeches, encrypted messages being set off Earth, suspicious attempts to break into the Boom-Tubes-"

'Boom-Tubes, access denied.' The computer said as the alarm rang since she said that.

"Sounds like your bad guy's struck again." Superboy said before running back to the doors leading to the Boom-Tube at super speed.

"He's almost as fast as you are." Bumblebee said to Flash.

Superboy looked around, he thought he heard maybe an animal, but it seemed to be gone before he got to the doors, and where he could tell an animal had been there because there were claw marks on the door and the keypad. The others soon came to catch up with him.

"Did you find our perp?" Hawkgirl asked Superboy.

"It's... Gone somehow... But I know it was here..." Superboy replied.

"We'll have to dust for finger prints." Hawkgirl said.

"Uh, sounds good," Superboy replied. "Um, any room for one more detective in this group?" he then asked, a bit hopefully.

Hawkgirl, Bumblebee, and Flash soon huddled together to make it look like they were making a decision even though after seeing how fast he responded to the alarm, their answer was clear. Superboy looked to them.

"Well... I suppose if you're really eager... Maybe." Flash smirked playfully.

"Wahoo!" Superboy smiled as he jumped in the air.

Flash chuckled before smiling back as that made Superboy's day.

"You better start dusting for finger prints." Hawkgirl told Flash.

"I'm on it." Flash nodded as he went to do just that.

"Uncle Drell!" Thor's voice whined.

"What is it, Thor?" Drell asked his nephew.

"I thought you said I'd be there too!" Thor replied.

"You will, just be patient." Drell told him.

"Fine." Thor pouted.

"Ah, you remind me of a very young Maui." Drell chuckled as he ruffled up his nephew's hair.

As Flash was dusting for finger prints, they found finger prints that looked bigger than human finger prints.

"Hm..." Superboy said as he looked with Flash.

"That's new." Flash said to him.

"Seems like some kind of animal." Superboy replied.

Superboy soon noticed something green on the crime scene. "What is that...?" he then wondered to himself. He soon got a closer look at the green item and where he could already tell it was from some kind of plant.

"Did you find something?" Flash asked.

"I think it's a leaf or something." Superboy replied, showing him.

"Oh, we should get that to Ivy." Hawkgirl suggested.

"Right, who else to examine to find out what plant this is from than the hero that controls plants herself?" Superboy smiled.

"Exactly," Flash smiled back. "Good eye, Superboy."

"Thanks, Flash." Superboy replied.

Hawkgirl took the green item so that they could have Ivy take a look at it. Superboy soon flew off to his dorm.

Green Lantern was reading a book on his bed.

"Oh, finally." Superboy said once he made it to the dorm.

"About time you got back." Green Lantern said as he read his book.

"Heh... Sorry... My cousin and I got lost." Superboy replied.

"So, Supergirl isn't your sister?" Green Lantern asked.

"No," Superboy shook his head. "I was raised to be Superman's brother, so that makes Supergirl my cousin too."

"That makes sense." Green Lantern replied in understanding.

"And then there was the crime scene at the Boom-Tubes." Superboy said.

"Is that right?" Green Lantern replied. "Any bad guys?"

"No, but there were claw marks and there were some big finger prints; kind of like animal and then there was something green that looked like it could be a leaf from a plant." Superboy said.

"Hmm... Interesting..." Green Lantern replied. "I wonder what it could mean?"

"Someone was trying to get into the Boom-Tubes, but the question is who?" Superboy asked as he got on his bed.

"Yeah... I wonder who too," Green Lantern replied. "Well, I'd hate to cut this short, but classes start tomorrow, so you better get some shut-eye."

"Right." Superboy said before getting some sleep.

"Night, Superboy." Green Lantern said.

Superboy let out a small yawn and smiled. "Night, Green Lantern."

The rest of the night went by smoothly.

The next morning came rather quickly which meant it was time for Supergirl and Superboy to join in some classes as they were Super Hero High School students now. And where one of the classes that would be Superboy's favorite would be like gym.

"For infinity plus two points, name the three pows of superhood!" Harley Quinn quizzed Supergirl.

"Superpowers, brainpower, and willpower." Supergirl memorized.

"Oh, yeah!" Harley Quinn beamed. "That's usin' your brain bucket!"

"You ready for class?" Green Lantern asked Superboy.

"Sure!" Superboy smiled. "I'm very excited about Gym Class!"

"I can tell." Green Lantern smiled back.

"You like Gym?" Superboy asked.

"Sometimes, though probably not as much as you will." Green Lantern chuckled.

"Oh, I'm sure I will." Superboy smiled.

A gorilla soon looked to them.

"Morning, Vice-Principal Grodd." Green Lantern greeted.

"How are you this morning?" Superboy asked the vice-principal.

"Tell your cousin to watch herself, and both of you be careful." Vice-Principal Grodd warned.

"Yes, sir." Superboy saluted.

"I guess he woke up on the wrong side of the hammock," Green Lantern told Superboy as they walked along together before whispering. "Just between you and me by the way, they say that old Grodd used to be a super-villain."

"Whoa, really? Then what's he doing here as the vice-principal?" Superboy whispered back.

"Someone brought him out of prison for a work release program." Green Lantern replied.

"Ohh." Superboy said.

The school bell soon rang which proved to be annoying for Supergirl.

"Harley, what's that terrible noise?!" Supergirl cried.

"I know how ya feel," Harley Quinn replied. "The class bell gives me the heebie-jeebies too."

"Harley Quinn is a unique student here." Green Lantern told Superboy.

"Hm... I see..." Superboy replied. "We up for Gym together?"

"You know it." Green Lantern smiled to him, knowing Superboy would have a lot of fun with Gym.