Spirit wrote:Maybe it's somewhat of joke and that 4th non human race is cetacean descendant instead like sharona, arcana and we are from monkeys. That and since 4th race seems to be making portals intentionally along with above being truth could explain need for underwater portals.
Or it's a red haring and it better to say Nth sentient races wonted to see interaction between other sentient race.
That would be: arcana, sharona, multiple species of sharona's cetaceans and monkey's confirmed to be sentient it seems (since its mentioned that uninhabited universes wait on sentinent life to be shaped do this monkeys, whales and dolphins from sharona at least can change them?) and still unknown race.
But until book with this race its likely over thinking.