–Differs from nearly all other dinosaur fiction in that the reader is brought into the past rather than dinosaurs being brought to our time. –Unlike most other dinosaur fiction, Hell Creek portrays the Cretaceous Period with great realism, so the reader feels that he/she is actually there. –The book was written by two novelists who are also scientists, and the science (painstakingly reviewed by three paleontologists)is dead-on accurate and current. –This book is of interest to professional and amateur paleontologists as well as to the general population. –One of the only dinosaur mysteries on the market (NOTE: the plot involves a detective story and a mystery). –Has been used by a paleontology professor as assigned reading for students in a college course. –Has already had successful limited edition special sales: 1. Museum bookstore. 2. Two professional geological societies (American Geophysical Union and Geological Society of America).