Searching for a gigantic, blood-thirsty mutant bat is hard work. Creating an antidote for said bat was even harder, especially with three impatient brothers and indignant best friend- Donatello would know. With little time and motivation left, Donnie finds himself plagued with guilt over not being able to cure April's father. In an attempt to fix what he had broken, the genius inadvertently puts himself in harms way. Who knew one simple, solo mission could change so many things? An AU. I've watched the 2003 episode of TMNT, 'Good Genes' a million times just so I could write this story. I love the episode and I'm committed. Love you all!!! <3

I wasn't always this way. Half-metal, half-living being. Sometimes it comes in handy, but it gets in the way most of the time. You're probably curious about what I mean by, "half-metal," and I'll get to that, don't you worry. But for now, just let me tell the story.

Donnie and Casey Jones have been rivals for such a long time for the love interest of April O'Neil. Donatello has known to love April more than any woman, and the moment she is out of the city for vacation, the rivalry finally calms down. Not only that, Casey and Donnie began to grow a small friendship when it comes to doubts or any other excuse. This is when Donnie feels the science in him between male and female began to go wrong, when he's thinking of Jones, and the thought of male, and make. And who better to help him with this issue? (YAOI! If you don't like, don't read. Also, this is taken place before the invasion or anything of season 3. Basically in season 2.... Kinda)

In a training mission Donnie was captured by The foot, who tortures him scared and alone Donnie is destroyed. After weeks he his found by his brothers but by this time he doesn't know who to trust, not even his own family can save him, no one. Which way will the turtle fall? 2012

Set after 'Mutagen Man Unleashed.' Determined to keep his promises to change Timothy and April's father human again, Donatello pushes himself beyond the point of exhaustion while working nonstop to create a retromutagen. It's up to Donnie's big brother, Leonardo, to stop the genius turtle from sacrificing himself and help him see his own self-worth.

Donnie is in deep depression when his brothers, ex crush April and his friend Casey start to bully him because he's always in his lab working. Donnie only feels like his father cares about him. Will donnie commit suiside or will he be rescued THIS IS NOT TO CAUSE HARM Book 4 of the series

After a near-death experience, Donatello is reprimanded by his older brothers for his actions, leaving him to question both his self-worth and his place in a family of more skilled ninjas. As a result, the turtles may find out what life would be like if they lost a brother. *Cover art by Flaux. ⭐️TMNT Universal Fanfiction Competition 2016 Winner - Most In-Character Donatello (first place), Most In-Character Raphael (first place), Most In-Character Michelangelo (first place), Best Original Character (first place), Most Exciting Action/Adventure (first place), Most Intriguing AU (second place), and Most Intriguing Villain (third place)⭐️

Something's wrong with Donnie. They saved him, fixed him... But he's still not responding. [COMPLETED] Cover by my friend Hannah :)!

After the battles against Dark, Mikey wanted to finish him because of what he put donnie into, donnie tries to stop them fighting because they are both going to kill their selfs . Will donnie stop this fight? Or Will Mikey and Dark die? Find out if you read this lovely book (not really) Warning! There is blood and near death