Purity of Spirit

Purity of Spirit was a Covenant assigned to Supreme Commander Thel 'Vadamee's Fleet of Particular Justice. The ship's crew sent threatening messages to UNSC forces on Reach during the invasion of the planet. Along with her sister ship, Undiminished Entelechy, Purity of Spirit was secretly ordered to conduct a close-range survey of Installation 04 by the Minor Prophet of Stewardship before the arrival of the. Purity of Spirit ' s crew taunted that of the human vessel after its arrival.