It might also help to remember that the story Mitron and Loghrif told the Shadowkeeper directly contradicts the story Elidibus told Ardbert in some ways. (Not the least of which being that the Shadowkeeper was told that, because they had failed to save their world from the Flood of Darkness, the First was doomed to suffer a Flood of Light no matter what because the universe likes balance. Rejoining the First instead of letting it fall to the Flood was supposed to be redemption.)