Menaced by no fewer than three alien invasion forces, the Earth cries out for its heroes. But the Sentinels have vanished! And now Pulsar stands alone, down but not defeated, and determined to rescue her teammates... and her world. APOCALYPSE RISING is a dynamic and gripping novel in its own right-- and the climactic chapter in the Sentinels saga! "One gifted writer." --Ron Fortier, author of Terminator: The Burning Earth