A remote world is rumored to possess a "treasure" of the angels, but no one knows what it is. Although Nya is certain it's not a Starfire world, she decides to create a portal for a quick investigation.

What they discover is a puzzle that no one has solved, because only Inari can access the answers; and the Paxons would like to know what it is. L'Ni and his team barely tolerate the Paxons joining them, but the desire for them to join the mission to destroy the Issan power installations forces their cooperation. What they discover is a tomb with a mysterious phantom taunting those who dare enter. When it drives the investigative teams into insanity, escape becomes a fight for their lives and risks fracturing any possibility of an alliance.