The Broken Observatory - Party Crashers AU

A sudden call.

  
Next day, 6 AM...
 
 
 
I woke up, hearing something ringing in the other room. It was so loud.

I decided to get up and I went outside my room. I noticed that Nick was already up and going towards the sound.

He went inside our parents' room. Soon enough I followed and also came inside.
 
 
"What is that sound, bro..?" - I asked, still sleepy.

"Dad didn't take his... Well, that weird phone he told us about. You know, that one he used to have in the haunted mansions." - he answered me, also tired.

"Huh... Is that what's making that sound?" - I asked, curious, and went towards Nick.

"Yeah..." - he said and answered the call. - "Hello..?"

"Good morning. Hold on, Luigi?" - we heard an old man's voice.

"Uhm... No, it's his son, Nicolas. Our parents left for a business trip."

"Oh, I see. Doesn't matter, we can't wait anyway. You and your brother, Brent, can help as well." - the voice said, seemingly in a hurry.

"Wait, hold on. Who even are you? How do you know about me as well?" - I stopped their conversation.

"Oh my, of course, I forgot to introduce myself. I'm professor E. Gadd." - he said.

"Wait, aren't you that professor who helped our dad when he was on his adventure through the mansions in the past?" - Nick asked, reminding himself.

"Oh, seems like you know me, that's awesome. However, I need your help. You guys are currently the only ones that could help us." - the professor answered.

"Wait, what? What are you talking about?" - I asked, a bit worried.

"What do you mean by "us"?" - Nick asked and frowned.

"It will be hard to explain through the call. I'll send you my location. Arrive as soon as possible." - the professor said and hang up.
 
 
Nick got a bit mad over the fact that professor didn't even let us answer him, but I was a bit distraught.
 
 
"Okay, Nick, let's go. It sounds serious." - I decided.

"Wait, you can't be serious, it's omega risky, bro. We barely know this guy, and we don't even know what's happening!" - he said, a bit surprised by my decision.

"I know, but listen. He did help our father in the past. Besides, I doubt anyone would call this early morning if everything was fine." - I said, trying to convince him.

"I don't know about it, Brent..."

"Come on, Nick." - I said, then thought of an idea on how to encourage him. - "We can have our main hero adventure there."

Nick looked at me and smiled. - "You convicted me, let's go." - he said, and we left the room.
 
 
We quickly left the castle, because we didn't want to be noticed.

I looked at the phone showing the location of professor's place to make sure we're going the right path.

I could tell Nick was still sceptical about it, but I knew that he wouldn't leave me alone in any sort of adventure.

After about an hour of walking, we finally arrived. The first thing we both noticed was how glowing this area was. It looked simply weird and unnatural.
 
 
"Yeah, no. It doesn't look normal." - Nick said a few seconds after looking at this place in silence.

"We're not going to back off now, Nick. Don't be a bitch." - I said, trying to tempt him a bit.

"Shut the fuck up, man. I'm just being careful here. I don't think that professor's "house" should be glowing like that, as if tons of fireflies was inside this shit." - he said, sceptically.

"I know, but we can't just go back now. We have to commit to our decision."

Nick sighed. - "...Fine."
 
 
I smiled and we went inside...