I recently finished reading the Across the Universe series by Beth Revis and discovered that there will be a few novellas about some of the characters we met in the three books. As They Slip Away (Across the Universe #0.5) is the first and is currently free to read on Scribd. It is 48 pages long.
Here is the summary, from Goodreads:
Taking place on the spaceship Godspeed before Amy Martin wakes up and Elder takes leadership, this novella describes life at the Hospital during Eldest's reign. Focusing primarily on background characters, readers will see fan-favorite characters Harley, Orion, Victria, and more.
Selene is a singer on a spaceship that only values people who can provide important skills that enhance survival. As her friends--fellow "loons" in the Hospital--start to join apprenticeships to turn their skills into valuable labor, Selene is sent with a handful of other students to learn about the importance of art from the Recorder, Orion. The assignment pairs her with a young sculptor, Luthor, and their dangerous romance proves just how terrifying living trapped on a spaceship under the rule of a heartless dictator could be.
This tragic tale explores the background of a previously unknown character, linking the history of the ship and its residents to Amy and Elder, giving depth to the world of Godspeed.
Find it here: http://www.scribd.com/doc/119788927/As-They-Slip-Away
Add it to your Goodreads list.