Changes

As Russ mentions that the Emperor was revealing Ferrus Manus as his 'third son', but referred to Ferrus implicitly as fourth elsewhere, this implies that the Primarch actually found between Horus and Ferrus Manus third was no longer not present. If this is the Second Primarch - who was established as being one of the first eight Primarchs found in [[Fulgrim: The Palatine Phoenix (Novel)|Fulgrim: The Palatine Phoenix]], and was actively leading his Legion at the time of that novel's events {{Fn|36}} - then this may just mean that the Emperor had chosen not to publicly reveal him yet, perhaps due to some sort of setback (if the Primarch's discovery itself was what Russ referred to as tragic).{{Fn|3647b}}