Set during "The Invasion".
The Shredder was making a mistake; Tigerclaw could feel it in his marrow. Nothing good could come out of working with those…Kraang. Just thinking the word made him growl lowly in his throat. However, he was hired to fight for the Shredder and- as the second in command- advise Shredder should he ask, but he could not make Shredder follow his advice.
That didn't change the fact that he knew Shredder should have taken his advice, nothing good could come out of an alliance with the Kraang. Tigerclaw should know…
He clenched his eyes shut, attempting to ward off the memory that threatened to surface, one that would spill out no matter how much he pushed it back. He couldn't go into that, not here, not now. Not while he was in the middle of the hall, his weakness completely exposed for any to see. He had to get to his room; he couldn't allow that memory to come up before he got there. Quickening his pace, he strided past his allies' rooms, and down to the one that the Shredder had given to him. He slammed to door behind him, and locked it; no one could see him in the state he was in. The memory was still there, nagging at him, demanding to be brought back into the light. Safe from prying eyes, Tigerclaw could hold it back no longer, and fell to his knees on the ground behind his door, keeping his eyes fiercely shut, and cradling his head, still trying to stop the inevitable remembering.
Kraang, surrounding a boy not yet even ten years old. Kraang, grabbing him; kidnapping him; spiriting him away from all he had known. Kraang throwing him in a cage, while he alternately screamed at them, and cried for his parents. Kraang strapping him to a table while he thrashed and struggled. Kraang filling a needle with a glowing green-blue ooze, Kraang bringing the needle to his arm while he watched onwards, terrified and unblinking, Kraang pushing the plunger, pushing the mutagen down down into his arm. Screams of terror and pain as the boy's whole body warped and changed, as his life was torn apart at the seams. Blacking out from the intense pain, the last thing he saw was a Kraang, with its bright green eyes burning into him, and a glimpse of orange and striped fur.
Slowly, Tigerclaw surfaced back to the real world, resolutely ignoring the existence of his wet cheeks as he glanced around his sparsely furnished room, making sure he was truly and fully rooted back in the present. He stood back up, taking controlled breaths. A memory, nothing but a ghost of the past that hardly mattered now.
Although, that ghost would become real, haunting him every time he did his work if the Shredder had his way. If the Foot was to be allied with the Kraang, he could only fight this fear, shoving away his memories of the Kraang and everything they had done to him. Replacing fear with hatred, he would face his demons every day, and he would show them that he was not afraid of them. He would teach them, as he has taught so many others, to fear him. The Kraang would have to face their creation, and he would make them rue the day when they kidnapped a child from everything he knew, mutating him, and setting him on the path of a warrior. He would make their allies fear and respect the name Tigerclaw, and he would not let them haunt him any longer.
Yeah...so this just happened. I honestly don't really know where this came from, but I kind of liked it, so figured I might as well post it. Bet Shredder's going to end up wishing he had listened to Tigerclaw… You can't trust those Kraang. R&R, until next chapter.