the Aaron and jake time travel

The Time Cavern
Website
Wikipedia (author's page)
ARBookfinder: there is an AR test, but it is not on AR bookfinder.
rating:4.5/5 (THIS BOOK IS SO AWESOME!!!!!!!!!!!!!!!!!!!!!!!!!!!!)

summary (beginning): Aaron hears his name being called by the wind. Then, the next day, a girl named Jacqueline(Jake for short) says "Just wait 'till you hear your name called by the wind." Will he ever get to the bottom of this?

The Inverted Cavern
website: see last link for website.
wikipedia: see last link for wikipedia
ARbookfinder: no test, no stats
rating: 3.5/5 (good book, understandable time logic)

summary:the Amish boy goes home. Jake and Aaron find their own handwriting in a dairy. aaron goes to the future, but he can't come home!