Original sentence: After getting back to the ship the Amnion inadvertently the existence of Morn's zone implant when they explain that it protected her from the brain damage a mind imprint would cause.Once they arrive at the station Nick convinces the Amnion to give them enough credit to fix their gap drive (which was damaged previously) and to force grow Morn's unborn child to adulthood, in exchange for a phial of Nick's blood, which the Amnion mistakenly holds the key to genetic immunity to their mutagens (the "immunity" is actually caused by a drug, of which the Amnion are unaware)
Edited sentence: After getting back to the ship the Amnion inadvertently reveal the existence of Morn's zone implant when they explain that it protected her from the brain damage a mind imprint would cause.Once they arrive at the station Nick convinces the Amnion to give them enough credit to fix their gap drive (which was damaged previously) and to force grow Morn's unborn child to adulthood, in exchange for a phial of Nick's blood, which the Amnion mistakenly believe holds the key to genetic immunity to their mutagens (the "immunity" is actually caused by a drug, of which the Amnion are unaware)