Onyx sentinel firepower

Y’gar straightened. “Sir, a Slipspace transition requires more power than ships that size can generate. I can only guess that they are somehow tapping into the Absolution’s Slipspace field.” “Energy spikes,” Uruo said. “Northern polar region.” The alien ships fired, hundreds of beams bounced within their linked geometry, combining and focused though their energy shields— directed into the center of the wrapping Slipspace. The Absolution vanished from high orbit— —reappeared in the center of the aliens’ field of fire. The hull of the destroyer superheated to white—flash vaporized, flowering into a ball of ultraviolet fire. The alien vessels comprising the octahedral formations deformed from the overpressure wave. They then flew away on random trajectories...
(Halo:Ghosts of Onyx; pg.282 -283)