Doctor Ehrehin i'Ramnau tr'Avrak was a Romulan engineer working towards the building of avaihh lli vastam (warp seven stardrive) for the Romulan military. He was there when they were testing a prototype ship, which exploded and caused damage to the ground installation. He watched his lab assistant Cunaehr die in the accident and was beamed out by a waiting Romulan warship. Ehrehin, deduced correctly that Tucker wasn't a Romulan, but still helped him fix their ship and get a message to Captain Jonathan Archer when he told them about the Romulan's plan to attack Coridan III and destroy it.