Tabitha Cromwell

Tabitha Cromwell is the late sister of Roan Cromwell and the first person to successfully assimilate the abilities granted by the Achilles Serum into her own body. She is the first successful case of effective brainwashing at the hands of the SEHB.

History
Tabitha grew up alongside Roan, eventually undergoing the same experiments her brother was subjected to at the hands of an obscure scientific organization. She was eventually brainwashed, later dying at the hands of her sibling in order to prevent her from living on as a danger to the world.

Ascension
Ascension (aka Advanced Evolution) is a power granted by the Achilles Serum to those who ingest it (or the blood of a relative who has done so). Ascension greatly enhances the user's natural ability to grow and advance physically and mentally, and is a byproduct of several powers, including that of Amour Casillas.