Blue Sorrow

A single tear rolled down Tessla's cheek as she and her twin sibling surveyed the splayed remains of their elder brother, floating ominously in the large glass vessel.

There was a soft oomph next to her as Knives suddenly passed out. It was the natural reaction to such a traumatic discovery, one she desperately wished she could manufacture.

She unconsciously clenched her fist, drew blood.

"The humans who did this to you... I will crush them," she whispered.

"I will avenge your death, Vash!"