Sons of Horus · 30k · Missing
Tybalt Marr
Captain of the 18th Company
Also known as The Either
Homeworld: Cthonia
Tybalt Marr, the Either, captained the Sons of Horus Eighteenth and made Shadrak Meduson his personal war. He lost ships and pride to the Shattered Legions, then caught their warleader in the Aragna Chain and ended the myth that Ferrus's sons could stitch a fleet out of spite forever.
The Either was a joke that stuck: Marr as the man who might be useful or might be a problem, depending on which Cthonian you asked. After Isstvan he became the problem Meduson could not ignore, a hunter who treated guerrilla Iron Hands as a siege that moved.
He got his kill. The Shattered Legions did not get a second Meduson of that scale. Marr's later trail is the usual Sons of Horus fog, which is to say he either died in the Eye or is still wearing someone's colours. The Either remains an accurate rank.
Track Tybalt Marr's known locations across the galaxy during the Horus Heresy.