I remember this book so little that I thought the book ended when they figured out what the secret alien tech was at the base.

I thought the joke was

Title

Oh it’s a toilet, haha and then it ended. I forgot the whole Scooby doo chase with the captain.

Not too much going on in this one.

I remembered this cover very well among a few that I remember well. And I don’t know why except maybe it’s because how they describe how the horses run? Or this seems like the most plausible transformation to me I think.

Again, don’t know why.