When I told Sunset of my intent, she promised to take care of Spike. On the day I made my vow, I knew I had to become something different. I had to be more than just Leonardo Hamato. I became The Nightwatcher. On my first night, I decided to look for one of Shredder's underlings. I was wearing the Nightwatcher prototype suit that Donnie had made.

I went to Shredder's old lair, but he was gone without a trace. So I searched for him around New York, looking everywhere. It took me a couple days. Then I was lucky to find that Dr. Baxter Stockman was still in New York. It was a dark and stormy night. I lurked in the shadows as he walked around, minding his business. "I know what you did, Stockman," I said, my voice altered to sound low and robotic. Baxter looked around, asking, "Who's there??" I was right behind him, and I whispered, "Just me." I then muffled his screams, dragging him to the corner of the rooftop. If people saw my interrogation, so much the better. I punched Baxter hard. "Stay down," I ordered. Baxter glared at me and asked, "Who the hell are you?"

I grabbed him by his stupid sweater vest and said, "Your worst nightmare. Call me Nightwatcher." Baxter smirked and said, "Nightwatcher? That's a stupid name. Sounds stupider than Nightwing. I'm not afraid of you." I punched him in the face and growled, "You will be. Now I want answers, Stockman. And you're gonna give them to me." Baxter smirked and said, "What if I say no?" I punched him so hard, his glasses broke as I said, "You don't have much of a choice!  And if you won't cooperate, I'm gonna take my time with you. Capiche? Now, where's Shredder?" 

"Go to Hell," commented Stockman. I slammed him on the ground, and grabbed hold of his right hand, squeezing it. Hard. "WHERE IS HE?!?!?!?!" I yelled. "I got nothing to say to you," said Baxter. I squeezed his hand harder yelling, "TALK! OR I'LL CRUSH EVERY BONE IN YOUR BODY!" And I meant it. "He's not here!" admitted Baxter, "Not in New York, specifically... He's probably in Japan..."

"Probably?!?!?! That's your best answer?!?!?!?" I threatened. "He mentioned he was going back to Japan, that's all I know, I swear to God," begged Baxter. I went close to his face and yelled, "SWEAR TO ME!!!!" Baxter nodded and said, "I swear to you, it's the truth!" I still had a hold of his hand as I said, "If you're lying, I'll break the other one." Baxter looked confused as he asked, "Other wha-" That's when I broke his right hand, and left him screaming in pain. So Shredder was in Japan. Now I knew where Sunset and I were going.