Series

Empty World

by David K. Anderson

3 books in reading order

  1. #1 Portal Through the Pond David K. Anderson · 2013
  2. #2 Beyond the Portal David K. Anderson · 2014
  3. #5 Portals in Peril David K. Anderson · 2019

Also in the series

  1. At the Portal's End (Empty World Series Book 3) David K. Anderson · 2014
  2. The Lost Portal (Empty World Series Book 4) David K. Anderson · 2015