What is it about the old Wilder Creek Bridge? Even after it's torn down--especially after it's torn down--why does it continue to exude a sense of deadly menace that arouses both Lewis Barnavelt's curiosity... and his deepest fears? Unable to resist the lure of its mysteries, Lewis and his best friend, Rose Rita Pottinger, discover both shocking secrets and a monster so terrible that even the combined efforts of Lewis, Rose Rita, Uncle Jonathan, and Mrs. Zimmermann may not be enough to save themselves-- and all humankind-- from its ferocious grasp. Brad Strickland continues the best-selling series of the late John Bellairs in this hair-raising mystery-adventure sure to bring shivers to Lewis Barnavelt's many fans.