The Lost Son

<Chapter 15>

POV Leo:

"Leo, we need to go out and find Donnie! He's not answering his phone! He's ignoring our texts! You asked April and Casey to call him, but what are the chances of Donnie answering them instead of us?!"

"Raph, you need to calm down! We could go out but we don't even know where he went! The only place he could have gone to is Casey's apartment or April's apartment, and April said she'll try calling him, so that gets rid of that, okay Raph? So just calm down, okay?"

I took a deep breath walking back and forth trying to think of a plan to solve this, I grabbed my head and sat on the couch feeling a migraine grow. "I feel like we should still go out and look for him, he could get hurt and kidnapped by the enemy", I slowed my breathing down trying to think of straight, "Raph, you need to calm down", I stood up, and paced back and forth in front of the TV, continuing with what I was saying, "But why did he run away like that in the first place? What did he mean when he was yelling at the mutant? And what was he-".

I stopped my words as I looked toward Donnie's Lab, and something flashed in my head. I sprinted towards the lab and stood in front of the door looking at the knob, nervous to know what all this meant. I slid the door open and walked over to the filing cabinet from earlier, "Dude what are you doing, why are you looking through Donnie's shit", I sent a glare towards Raph, as he held his hands up, knowing the reason for my glare, "First off language, and second earlier when I came in here to get Donnie to come out and watch the news, I noticed he was working on something, mumbling under his breath, while blasting music in his ears, I yelled at him and when he saw me he hid some folder and closed his computer like he was hiding something", I reached inside the filing cabinet looking at the various folders, looking for the specific one, "What do you think he was hiding".

I lifted a folder reading each cover and groaned seeing no folder showing anything worth hiding from me, I opened the first folder finding numbers and equations filing each page inside the file, I put it back grabbing the next one, "Dude Raph, help me look for the folder, I saw him put it in here", I stepped to the side, giving Raph access to the old noisy cabinet. I put back the folder and grabbed the next folder, flipping through the pages and still finding nothing important, "Dang it there has to be something! Something worth hiding from me!", I put the folder back and grabbed another, "Maybe he was just hiding some po-".

"Found it!", I walked over to the table, slamming the folder on the desk, "See I knew he was hiding something from me", I pointed at the cover proudly, smirking at Raph who looked at me confused, "Retro-Mutagen Notes?", I looked at the cover, looking back at Raph, "Okay yes the cover says that, but look inside". I flipped open the folder showing the few limited pages filled with notes about the turtle our genes come from, "And look at this, this folder has a description about that Turtle kid that the Crocodile mutant and Donnie talked about, even down to the description of what the kid looks like", I continued to read the pages, becoming more confused about the information written down, "But what does this mean and what did Donnie mean when he said 'how could you be so cruel to my brother', we never met the mutant in our life, so what was Donnie even talking about, unless...".

I looked at Raph as I saw the rare moment of shock and confusion fill his eyes, "Raph, you don't think...", Raph stepped forward looking at the description written on the page, "his baby blue eyes, and the freckles that adorned his small cheeks and shoulders...Splinter said those were the features he could never forget about his fourth son, this 'Turtle', what if he's...actually our brother...".

I looked at Raph shocked at his solid point, they all made sense, but one thing wasn't connecting, "But if he's our brother, then why did Donnie hide the truth from us, shouldn't he have told us the moment he found out, and how long has he known"