Aquarius Undone by Tricia Barr

Believing he’s lost everything, Eric’s decided to disappear. He’s determined to never be vulnerable again, living with the irony that he can alleviate everyone’s pain but his own.
Except he can’t deny his draw to Ada and the others. And Ada is desperately trying to make things right between them. What’s more, the Zodiacs are quickly learning they were connected long before any of them realized.
And the Zodiacs need him. The wormhole is changing. It’s growing bigger and Tristan has had another vision. A planet is about to be destroyed, and they’re the only ones who can stop the destruction from happening.
Eric, his heart jaded and guarded, learns it’s his own home world in danger, the Aquarius planet. Ada wants to be there for him, if only he’d let her in…
Can the Zodiacs save Aquarius and its people? Or are they walking straight into Chardis’s trap?