Series

Gravity

by Abigail Boyd

4 books in reading order

  1. #1 Gravity Abigail Boyd · 2011
  2. #2 Uncertainty Abigail Boyd · 2011
  3. #3 Luminosity Abigail Boyd · 2012
  4. #4 Velocity Abigail Boyd · 2013

Also in the series

  1. #3.5 Inertia Abigail Boyd · 2013