Sabotaged

I like how the author tells a lot of details about the characters in the book. The characters can go back in time as long as they are holding on to their dog's collar. Some kids in the book have got lost in time, and the kids have to come and get them. Some of the characters in the book are from the future. Those kids have to get back to their proper timeline, or they can't go back. In my opinion, the characters are really cool. The main characters are time travelers themselves. They are brother and sister. I was surprised when the author told me that some of the kids went back to London, 1483. Two kids get lost in time that day. I'm not finished yet, but so far, it is a good book.