Richard Barth departs from his popular series featuring elderly sleuth Margaret Binton to introduce Dr. Samuel Garvey, the best and most daring roller coaster designer in the country, and to take his readers on the ride of their lives. Garvey is now at work on his masterpiece, the Jumper, for the Angelus Corporation in Texas. The Jumper will do just that-the two cars will jump tracks with each other in the middle of the ride travelling over a 60...