The crew's nickname for a seemingly idyllic Delta Quadrant planet that reads visitors' desires and uses illusions to trap them, where the USS Protostar crashes in Dreamcatcher and Terror Firma.
The Murder Planet is an uncharted M-class world encountered in the Prodigy two-part story Dreamcatcher and Terror Firma. The young crew of the USS Protostar land for their first survey and find a lush, welcoming place.
Each of them soon meets something dearly wanted: Dal sees parents, Rok-Tahk a friendly animal, Jankom Pog a feast, and Hologram Janeway is misled as well. The planet itself is alive. It senses desires, projects them as bait and wraps its vines around its prey to consume it. Gwyn uses the confusion to take the ship, which is dragged down and half swallowed.
In Terror Firma the crew cross the hostile landscape to reach the Protostar while the Diviner closes in. They escape by engaging the ship's proto-drive for the first time.