Floats on Air
ahsoka became a machine.
In the end, it wasn't that hard. Anakin cannot distinguish his padawan in this monster, so his blade easily slides into the only fleshy part left: her heart.
His mind is torn asunder as he watches the explosion of her starfighter, and really, it's a miracle he survived that crash, he's later told by his old master.
The monster stares at him with surprise and confusion, and Anakin has to look away before he remembers.
"I'm sorry. There was nothing left."
Something lands on his boot—lithe and light, and Anakin has to admire her ability to look as if she's floating on air—and he finds her akul headdress, unmarred and whole.
He continues on as if nothing has changed, but his nights and days are plagued with nightmares.
Anakin contemplates saving the headdress; but no. He will let it burn with the cruiser because that headdress belonged to a monster.
It takes him exactly two minutes and forty-three seconds to recognize the headdress on this machine-that-isn't-Grievous, and when he does, Anakin immediately forgets because he never had a padawan and he never will.
It's too dangerous, he tells himself. Especially with monsters like Grievous and this one running amuck.