There was this book. I read back in middle school and I can't for the life of me remember what it was called. The cover was all white with just a black illustration and it had red text for the name of the book. I specifically remember the ending where he goes back to the present, but none of his buddies believe him. He tells them that he'll take photographic evidence, and he goes back to the future (no pun intended) and the book ends saying that he never returned and his friends thought he just ran off. I've been searching for the book for awhile now, my school had a huge wall with books that had similar covers. Any help would be lovely!
by PreformaX