Donatello found that his mind wasn't at all focused on any of his projects that night. His mind had hardly been focused in the two weeks since Raphael had been killed by Karai's sword. He often caught himself staring at his computer screen wondering what he was doing in front of it. A look at the clock always confirmed the great length of time he'd spent sitting there, doing nothing at all.

He wasn't the only member of the family who was unable to go on with his daily routine. Michelangelo hadn't touched a single video game or even the television remote once. When they'd first brought him home, he'd been antisocial and uncharacteristically quiet. Four nights after the fight, he'd taken all of Raphael's alcohol from the fridge and drank all of it. Everyone, except for an MIA Leonardo, had seen just how unpleasant and angry, drunken Michelangelo could be that night. He'd cursed out his family and thrown a bunch of Raphael's belongings onto the floor. Since that night, Splinter was working with him on meditation methods daily. Of course, it hadn't changed him back to the easy-going turtle that he usually was. When he wasn't just half-heartedly skateboarding around the sewers at the suggestion of Splinter, he could often be found staring angrily at the Nightwatcher helmet on his father's shelf.

Leonardo was just as bad. He either spent his time in the dojo or out on patrol. He hardly spoke a word to anyone when he came home in the mornings. He didn't even try to console his brothers, and he usually would've been the first to jump to their aid. Living in the house with Leonardo was like living with a ghost. He was rarely ever seen, and the faint sounds of Raphael's punching bag being put to use behind the closed doors of the dojo was almost haunting to the rest of them.

Donatello knew that Splinter often entered Raphael's bedroom and cried at the sight of all of his belongings, all set back into place after the scene caused by his youngest son. April and Casey had been around more often than usual, constantly offering to get anything the mutant family needed. April brought food every day, more food than they needed, and she spent a lot of time with Splinter, trying to cheer him up. It was a hard task when she hardly felt cheerful. Of course, Casey seemed just as lost as any of them without Raphael. The guy hardly knew any human beings on a personal level, and Raphael had been his best friend.

All things considered, Donatello knew that he was probably doing the best of all his family members, even if only for the sake of being strong for the rest of them. With a yawn, he decided to get to sleep in hopes that sleep might clear his mind. After brushing his teeth and turning off all the lights, he collapsed into his bed. Unfortunately, every time he tried to sleep he saw Raphael, his eyes lifeless and empty as he lay in Leonardo's arms.

"Don, are you awake?"

He was half asleep when he heard the voice, and his breath hitched as he looked to see a dark shadow of a form standing in his doorway, the light from behind making him the visitor impossible to make out. Before, it had always been Raphael standing in that doorway late at night. He would come there just as Donatello was getting ready to go to bed, asking if he wanted to work on the Battle Shell of the Shell Cycle. Donatello knew that was code for 'I'm upset and need you to get me to talk to you,' so he'd always agreed to stay up even later, despite his exhaustion, to wait until his brother was ready to open up. Sometimes it took all night. Other times it didn't take very long at all. And still, some nights Raphael never said a word, but Donatello understood. He knew that those nights were the ones when Raphael was most distressed, but he also knew that the mere fact that he understood Raphael's distress and need to be in company without pushing him was enough to help calm his brother.

This night, when he heard the voice and saw the figure in his doorway, Donatello half-expected Raphael to be there.

The figure shifted uncomfortably from one foot to the other. "Sorry, go back to sleep." He turned to walk away.

"Wait, Leo." Donatello sat up and watched his brother turn back. "I wasn't sleep yet. Turn the light on."

Leonardo did as he was told. Donatello rubbed at his eyes and blinked a bit until they adjusted. When he got a good look at his brother still standing in the doorway, he saw just how tired and sickly he looked. Leonardo's shoulders were slightly slouched and his skin had an unhealthy pallor to it. "You sure I didn't wake you?"

"You didn't." Donatello swung his legs over to the side of his bed. "You haven't been sleeping at all, have you?"

Leonardo didn't reply to the question.

Donatello sighed. "What do you need?"

"I wanted to ask for your help with something." Leonardo finally entered the room and walked towards Donatello's computer desk. "Do you have a map of the city that you could pull up?"

"Sure." He walked over and sat in his desk chair. He typed in his password and looked back at his brother. "What's this about?"

"I want to plot out these locations on it." Leonardo set down a sheet of paper on the table. On it was a list of different street names.

"Okay," Donatello replied, slightly confused. He began to do as his brother requested. "What are all of these?"

"Foot."

Donatello paused and looked at his brother. "The Foot? Leo, where did you get all of these?"

"It's a list of places that I've run into Foot ninja on my patrols in the past two weeks."

"In the past two weeks? There are nearly thirty locations listed here. You haven't been fighting them all?"

"I have." Leonardo looked very dark as his looked his brother directly in the eye. "They aren't getting away with their crimes anymore, Don."

"There's no way that you could possibly have just run across this many Foot ninja on your patrols." Donatello completely stopped adding in the locations. "You've been out there looking for them specifically." He only had to hear his brother's silence to know that it was the truth. "And no sign of her, I'll bet."

The look on Leonardo's face darkened even more than before.

"You've been looking for the Foot every night since we lost Raph hoping to run into Karai," Donatello accused.

"And I want you to plot those locations on that map so that we can try to find their headquarters."

"I can't help you with that." Donatello got out of his seat.

"I'll plot it myself," Leonardo said, taking his brother's place. "I'll just need you to take a look after I'm done to tell me any likely locations where Karai could be hiding."

"You aren't thinking straight." Donatello set a hand on his brother's shoulder. "You've only been practicing and patrolling lately. Have you gotten any sleep at all?"

"An hour or two here and there."

"That isn't enough for anyone. You're not in a fit state to be out there looking for revenge, Leo. You need to get sleep."

"I can rest when Karai is gone," Leonardo snapped.

Donatello looked at his brother with pleading eyes. "Raph wouldn't want this."

"He would be doing the same thing if it had been any of us."

Donatello sighed and grabbed his brother's hand from the computer's mouse. "He wouldn't want to see you turned into this."

Leonardo ripped his hand out of his grasp. "I let this slide for far too long, Donatello. If I had just gotten rid of Karai before, he wouldn't be gone. It's my fault that he's dead. I'm not giving her the chance to do it again to any of my other family members. And she will pay for what she did to Raphael, whether I have your help or not."

Donatello watched him silently for a moment before giving him a nudge. "Give me my seat back. I'll help you on two conditions."

Leonardo stood. "What're they?"

"First of all, you get some sleep."

Leonardo nodded. "I'll try."

"And when we find her, you don't go in there by yourself, Leo." Donatello gave him a very serious look. "I mean it. Mike, Casey, and I will go with you. And Master Splinter has to give the okay. We aren't doing this behind anyone's back and we aren't doing it until everyone is in the right state."

"I'll agree to that as long as no one tries to hold me back," Leonardo said.

Donatello knew that it was the best he would get out of his brother that night, so he went back to plotting the points on the map. "Get to bed Leo. And sleep in tomorrow. You look terrible."

Leonardo grunted in response, much like Raphael used to do, and made his way out of the room. Despite having chastised his brother for the drastic methods of finding Karai, Donatello couldn't blame him for his drive for revenge. He found that this night, for the first time in a while, he was completely focused on his project.