Be Your Own Duck commander - book 3
In Si in Space, you are Silas Robertson, but most people call you Uncle Si. An exciting business opportunity gives you and John Luke a chance to travel into space, and you can't wait to orbit the moon. Some might say space travel is scary, but you're not worried, Jack. After you guys blast off, though, things start going wrong. The spaceship's computer takes over, there's a UFO following you, and you encounter adorable-looking but dangerous creatures. Can you and John Luke make it back to Earth alive, or will you get lost in space?
In the Be Your Own Duck Commander series, you get to choose what happens next!