Upon closer inspection, the Cantabrian away team discovered several harpoon-like weapons lodged deep within the Devil's Cube. These weapons sent a surge through the cables attached, disabling the cube and its drones.
The Cantabrian fled the attacking Devil's Cube after the cube's systems came back online, and the unknown adversary emerged again from a subspace rift. As the two alien ships battled, the Cantabrian made its escape, igniting metreon gas in its wake to either disable or destroy the enemy ships and collapse the subspace rift. (Star Trek: The Cantabrian Expeditions: "Devil's Cube")