The Terrarium Dragons by Lorie Calkins
Price: $2.99 USD. 15460 words.
Published by Sam's Dot Publishing on May 4, 2013. .
During an air pressure drill on Mars, dragons escape from the terrarium into the ducts. The ducts must be purged. This would kill the dragons, but Jason climbs in to save them. There he learns to communicate with the dragons, and the dragons tell him they want to go home to their own world.
Can Jason save the dragons? Will they reveal their secrets? What will happen to his new friends?