Search - The Decision (Animorphs, Bk 18)

Another interesting book in a series I wish would've been around when I was a kid. However, I'm still enjoying it as an adult. Lots of action and space travel (though unintentionally) in this one!

Ax and the Animorphs are about to have a huge problem. It starts when they decide to morph mosquitoes in order to slip by some unsuspection Yeerks. It ends with them stuck in Zero-space with no idea how they got there, no way to get back to Earth...and oxygen
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Ax and the Animorphs are about to have a huge problem. It starts when they decide to morph mosquitoes in order to slip by some unsuspecting Yeerks. It ends with them stuck in Zero-space with no idea how they got there, no way to get back to Earth...and no oxygen.
Luckily, an Andalite scout ship finds them before it's too late. But now Ax is finally with his own people. And he doesn't know if he ever wants to go back to Earth...

I read these books when I was in late elementary school through 7th grade. I am posting all of them which I own. When I was younger I really enjoyed them.