This is the first in the series, In Due Time. Strange things are happening in the library at Sands Middle School. Historical figures appear in the library, but the librarian whisks them away. The librarian meets with Matt, Luis, and Grace and shows them a magical book. The three students use the book to travel back in time and have an adventure in 1950s Brooklyn.

This series would appeal to those who have moved on from the Magic Tree House Series, but still want a time traveling adventure book. At the end of the book, the author includes what you would find if you were actually in Brooklyn in the 1950s.