"Books in the Fantasy Field Trips series take the reader on field trips to the most unlikely of destinations! In this book, climb into our amazing drilling machine as we prepare to make a journey to the center of the Earth! Our 'tour' takes us through the various layers that make up our planet: the crust, upper and lower mantle, outer core, and finally the inner core itself. But what will we find when we get there?"--From the publisher's web site.
