I remember reading a book back in 3rd or 4th grade ('96/'97) from the school library. It involved a group of young kids (3 or 4 different kids, pre-teen I think?) who had somehow gotten magical powers. One of the powers was to Freeze time in a localized area. Only other little bit I remember was them using the time freeze power to stop a bunch of medieval warriors arrows in midair while they escaped. Unfortunately, that is all I can remember.
Anyone know the name of the book?