Stardate 866274.3: As the Discovery is being cleaned from the sand, Burnham and Rayner are debriefed by President Rillak. This doesn't go well for Rayner, who clashes with Rillak over his actions on Q'mau. The Discovery then departs for Lyrek, the planet in the Vileen system with the twin moons. This planet used to be a burial ground of the ancient Promellians. Burnham and Saru hope to find a message from Dr. Vellek at a structure, which the Promellians protected by a still operational EM field. As they approach the place, drones begin to attack them. Adira and Tilly try in vain to find out what powers the devices, until Rayner hacks into their communication and gives them the hint that they should search for something the ancient Promellians already possessed. While Saru is distracting the drones, Burnham manages to blow up the power source, upon which they are free to proceed and find the message. Phaser scorches in a stone pillar, however, reveal that L'ak and Moll beat them to it. It is still possible to decipher the four first verses of a Romulan poem though, which seems to indicate there is a further message on Betazed. Burnham and Saru have little time left as the drones begin to reactivate. But they find a "backdoor" underneath the pillar with the remainder about "where two souls entwine, joined as one" that points to Trill. There is also an artifact, whose shape matches with the drawing from Vellek's diary - apparently the first one of five parts of a puzzle. On the Discovery, Book uses an untraceable transmitter to talk to Moll and L'ak. He realizes that he has seen Moll before - she is Malinne, the daughter of his mentor Cleveland Booker IV. As Saru has left the ship, Burnham finds a new first officer in Rayner. He was forced to resign but his reinstatement was approved of by Admiral Vance.

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