When I was much younger, I was obsessed with a series of books that likely many of you are familiar with: Choose Your Own Adventure. In essence, each book was a self-contained role-playing game with numerous endings and fates for your character. (Some of you may also be familiar with the series of Star Wars books with the same format.)
Book no. 12 in the series was titled Inside UFO 54-40, and was written by series creator Edward Packard. It was first printed in 1982, but I came across it about a decade later.
This book is unique in the series in that it contains a special ending of valency zero; that is, no choice made on any other page in the book leads to that ending.
The ending is also special because of what it represents in terms of the plot. Your character's story starts off over the Atlantic on the Concorde, when a long, tubular UFO appears and abducts you from the plane.
The ship you find yourself on is called The Rakma, controlled by aliens known as the "U-TY". They spend their days searching the universe for a mythical paradise planet called Ultima, all the while collecting zoological specimens from the various worlds along the way.
The book is arguably less cheerful than others in the series. Many of the book's endings are dead ends or worse — for instance, you can upset the U-TY and get sent to "SOMA" to sleep for a billion years. Or you might get split in two and watch in horror as your legs run away from your torso!
On the other hand, there are a few happy endings thrown in, such as escaping the ship and being reunited with your family again. But perhaps the happiest of them all is the special ending: it is the one where you reach Ultima and find eternal peace and bliss.
Seeing as we cannot get to this ending by making choices on other pages, my question is:
How do we reach Ultima?
(For the purpose of answering the question, one can read this as: How is one supposed to reach Ultima?)