Chatterbox: Inkwell

okay, here's an excerpt from two stories I want to write. Which one should be first? or should I not do one at all?

The few things she remembered about the accident were Emmet's pale fingers reaching out to Chris as he fell in slow motion into the street, a high pitched scream, (maybe her own,) a traffic light blinkking green, and a yellow mustang stopping at the curb a little too late...

here's roughly a shortened version of the summary for the other. Please excuse the fact that there are no new paragraphs.

"Am I going to die, Cat?" she asked softly. "Everyone has to die, Jenna." her sister said tenderly. "No." insisted Jenna. "I mean, soon. What if the doctor's aren't able to save me?" Cat looked deep into her sister's eyes. "They will, Jen. They won't let anything happen to you. And neither will I." "Promise?" "I promise."  And it was that broken promise and little white lie that turned Catherine Rose Montgomery's world upside down.