Palanthus

Palanthus is a (formerly) mask wearing celestial woman who travelled with the group extensively after they met in Heston. We learn almost by accident that she was captured and experimented on by researchers in Traskarr who were investigating Celestial biology.
She proved a skilled ranged fighter with her signature laser rifle, and carried a nebulous assortment of magic items, seemingly for every occasion. After the events of Session 13: Power Revealed, Palanthus left the group, without any real explanation. Later on however, she was encountered in the first room the the Shard Dimension.
Here, now maskless and supported by two other armoured celestials, she explained her intention to Shard to resurrect her grandmother(?). Of all the enemies we encountered, Palanthus bought us by far the closest to defeat - managing to knock out all party members except for Seraphina, and killing Ruuch Caliban. When we last saw Palanthus she was unconcious somewhere far back in the early rooms of the Shard Dimension.
(Showed up again one last time in Saans manor before the party set off to Thraast, only seen by Usze and no contact was made)