For all the sci-fi fans out there in search of a good book, I strongly recommend this book to all of you (if you are not a sci-fi fan I still recommend this book to u). This book has is just typically meant for sci-fi readers because this has all the requirements for it being a successful sci-fi book. The book is simply just an awesome book to read because the author, William Sleator is cool guy. He is very clever in making different sci-fi books. I mean he as actually created theories that make sense. Like in this book he has actually created a theory of some sort of abandoned shack or shed that speeds up time, when inside of it. The reason behind this "time warp" is because that shed lies on some sort of black hole.
Another aspect that Sleator Created are the feelings and personalities of the main characters of the book of this book is the feelings and personalities of the main characters in this book. The two main characters are twins, Harry and Barry. Their personalities are completely opposite. Barry is the strong, athletic, and bossy one while Harry is the smart, weak and sensitive one. Barry being the stronger always bosses and bullies Harry around. This makes you feel sympathetic towards Harry because of the way he feels about his brother. For example he is sick of being the weaker one or he wishes that he wants them to be more like brothers than rivals. BUT all of this changes when Harry decides to hide/stay in that mysterious shed over night. I recommend all readers especially sci-fi readers to read this book because throughout the book there are many twists and the ending is quite surprising. Also I recommend read other books done by Sleator because them too are just as good as this book