Little surprise

This afternoon, I decided to take an old book which I had already read ( from place) . When I opened it, it had a little surprise. I found some money in the book, which was a pleasant surprise.

Little surprise

This afternoon I decided to take a old book which I used to read (off the shelf, off the table, from the bookcase, from the library). When I opened it, it had a little surprise. I found some money that was kept in the book. That's absolutely happiness for the reader! (me)

Little surprise

This afternoon, I decided to take an old book which I get used to reading. When I opened it, I was really surprised. There's some money was kept in the book. That's absolutely the happiness for the reader.

Remember: There's a big difference between " have " and " there's/ there're". You should review this. 

Little surprise

This afternoon, I decided to take an old book which I was used to reading. When I opened it, I was a little surprised. There was some money in the book. That's absolutely lucky for for the reader. Aha! I've found money before in my books, too. It's great.