Leo Frankowski�s popular Cross-Time Engineer series, the first three novels of which fill this volume, has gone through six novels to date, with frequent reprintings and translated editions in Italy, Spain, and Poland. In addition, he has written the novels A Boy and His Tank, The Fata Morgana and Conrad�s Time Machine for Baen. In collaboration with Dave Grossman, he has also written The War With Earth, Kren of the Mitchegai, and The Two-Space War. Frankowski was nominated for the John W. Campbell award for best new writer. His occupations have ranged from scientist in an electro-optical research lab to chief engineer to company president. His work in chemical and optical instrumentation has earned him several patents. Currently a writer and consulting engineer, he lives in with his new Russian wife and teenage daughter in Tver, Russia. Further information about Leo Frankowski is available at his website: http://www.leofrankowski.com/