The Crash Crystal: A Lego Mystery: A middle-grade novel for 9-12 year-olds
John D. Wagner is the award-winning Vermont author of twelve other books and thousands of pieces of journalism and professional writing.  Also a tool inventor, poet, and professor of architecture & literature, John has widely traveled the world (especially in South Asia) where he's always noticed that fate seems to assemble the right people at the right time to make magical things happen.