DC Comics JSA #2 Diego Olortegui

Flash back to the events leading into the previous issue as the JSA investigates a break-in at the observatory of Ted Knight, the original Starman. How was the JSA separated, and where is the Tower of Fate? What caused the rift between Jade and Obsidian after the disappearance of their father, Green Lantern Alan Scott? And what is the Injustice Society of America plotting?