Get your free bonus material for The Radon Trilogy here! Get deleted prefaces from all three books. Get deleted chapters, deleted epilogue, and deleted appendices from Book 1. EXTRA! Get the author's own reviews of all three books and his review of the trilogy as a whole, plus a detailed biographical sketch about the author. Get color photographs of the author and Sheila, his home-built airplane. All are here in Radon Trilogy EXTRAS!