Biggs surveys the situation from a van parked outside the ruins of the Hall of Justice. Under Booster’s direction the JLI has split into four groups to infiltrate the caverns beneath the four Signalmen. In Peru, Booster uses his blasters to create a with broad spectrum glare he hopes will distract the Peruvian Signalman while Batman sneaks into the cavern below. The detective finds traces of the UN science team and presses deeper. Rocket Red and Ice investigate a Signalman in the Russian Arctic and discover that there is also a chamber buried deep beneath it. Ice forms an ice sphere which she and Red use as a bathysphere to dive to the bottom of the ocean floor. From there they break through into the cavern. Rocket Red’s sensors show the the cavern is older than humanity. In South Africa,