One possibility, given my (probably wrong) interpretation of the ground rules of the fictional universe, is that the humans go to the baby-eaters and tell them that they’re being invaded. Since we cooperated with them, the baby-eaters might continue to cooperate with us, by agreeing to:
1. reduce their baby-eating activities, and/or
2. send their own baby-eaters ship to blow up the star (since the fictional characters are probably barred by the author from reducing the dilemma by blowing up Huygens or sending a probe ship), so that the humans don’t have to sacrifice themselves.
One possibility, given my (probably wrong) interpretation of the ground rules of the fictional universe, is that the humans go to the baby-eaters and tell them that they’re being invaded. Since we cooperated with them, the baby-eaters might continue to cooperate with us, by agreeing to:
1. reduce their baby-eating activities, and/or
2. send their own baby-eaters ship to blow up the star (since the fictional characters are probably barred by the author from reducing the dilemma by blowing up Huygens or sending a probe ship), so that the humans don’t have to sacrifice themselves.