Something waits under the waves.

When Celina and Jade go for a ride in Avi’s spaceship, they expect to have a fun time with the merfolk in the space station called Atlantis.

But something is wrong on the planet below… and the merfolk aren’t friendly.

Forced to the bottom of the ocean, the three friends are in more danger than ever.

Book 2 of Tales of a Unicorn and a Spaceship.

Recommended for Grades 4-7