The Battle of Manhattan was the major battle that occurred in The Last Olympian and was the climactic final battle of the second Titan War. It began with Morpheus putting the entire island of Manhattan to sleep. The Titans covered Manhattan in layers of magic. The cars on the New Jersey highway seemed to be moving at one mile per hour due to Kronos slowing time. Also, Hecate may have been helping by using magic, because it seemed like all the drivers were getting a subconscious message to turn away from any Manhattan exits. Since the wind gods (Aeolus, Boreas, Notus, Zephyrus) would keep Kronos' forces away from Olympus by the air, and the spirits of the Hudson and East river drowned all forces on the water, Kronos had to try a ground assault.