The next five days were the longest, darkest, most desperate five days in the history of the United States.
The injuries Doomsday had suffered in the battle at Metropolis healed completely in less than an hour under the frenzied repair of dark-red energy.
Bone-white armor once again covered the wound the spiral Shuriken had gouged in its chest. Severed black blood vessels reconnected, dark-red muscle fibers regenerated layer by layer, and even the Bone Spikes Thor and Natasha had shattered together burst from its shoulders and spine again, longer, thicker, and deadlier than before.
Then it began its real "guerrilla war."
On the first day, it left Metropolis and pushed west across Pennsylvania, stopping in downtown Pittsburgh for less than two hours.
In those two hours, the steel district's iconic blast furnaces were stomped into pools of dark-red molten iron. Three bridges spanning the river snapped in the middle, and Heat Vision strung together over a thousand cars on the highway into a line of charred metal shells.
On the second day, it appeared in Chicago.
It stomped through Navy Pier, sending water from Lake Michigan surging into the city and submerging half the commercial district beneath murky floodwater.
On the third day, it appeared in Denver.
Its Heat Vision burned a straight, blackened trench through the eastern foothills of the Rocky Mountains, from the foot of the mountains to the edge of the city, reducing every house, road, and bridge along the way to ash.
On the fourth day, it appeared in San Francisco.
The Golden Gate Bridge snapped in the middle. Both halves plunged into the Pacific Ocean with the vehicles still on them, throwing up spray dozens of meters high.
On the fifth day, it appeared in Los Angeles.
It crushed the iconic Hollywood sign underfoot, swept