Actaully, I borrowed it from Libpia on the internet and it was my first  borrowing.

It was little disappointted, though. Because, the books were a little easy.

But it  was special composition that I was naver seen ever, so it was very exciting.

Each paragraph has the number and you can find the other number that you have to read next at the end of the paragraph. so you can't read the book in order(순차적으로).

The answer that the book want you to go reads you to read more story but if you choose the wrong answer, you have to the last paragraph again.

Try to read this.