Tales of a Sixth-Grade Muppet: When Pigs Fly

 is a Muppet book and the fourth in the Tales of a Sixth-Grade Muppet series. The original working subtitle was Where No Muppet Has Gone Before.

Description
"Danvers Blickensderfer has started class at Sam Eagle's academy, and as it turns out, it's pretty much just like any other school. Danvers is already prepping for a quiz, memorizing lines for the school play, and, of course, training for space travel. That's right, Dr. Honeydew and his colleague Dr. Julius Strangepork believe that the famous WormHole-N1 could be the cause of Danvers' Muppetmorphosis, so they launch an expedition to uncover the truth. But how do you get a Muppet kid to the far side of the galaxy?

Will Danvers and his crew find the secret of his Muppetmorphosis at the edge of the universe? How did twenty-two stowaways get on board the SS Swinetrek? And how will Sam Eagle explain to all those parents why their kids are light years away from Earth when they should be in choir practice? Find out the answer to these questions and more in the next installment of Tales of a Sixth-Grade Muppet!"