Sei Rhuka

Sei Rhuka is a member of a tribe of fire-magic practitioners originally from the Blackspine Mountains.

She is first introduced in the first book of The Crown and The Flame, as Hex's captive 'secret weapon' (Hex means to use Sei's powerful fire magic to defend the Nevrakis troops against Kenna's army). Upon meeting with Stormholt servant Dominic Hunter, she recognises his unusual chest-scar as the brand of the fire-magic mountain tribe in which she is a member; she deduces that Dom is not simply an orphan of Stormholt but a long-lost member of her tribe, capable of manipulating and conjuring fire through magic.

In the midst of the Battle of Stormholt, Dom releases Sei from her captors and they combine their fire magic together to defeat the Nevrakis army and assure victory for Kenna.

Thankful for his intervention, Sei swears to follow and fight alongside Dom, albeit reluctantly (she wishes for herself and Dom to return to their homeland nestled in the Blackspine Mountains so Dom may harness the true potential of his fire-magic abilities, with the help of her grandfather, the master Anu Rhuka). She gets her wish following the Battle of Thorngate when a distraught Dom flees Kenna's encampment after badly scolding Kenna in a friendly-fire accident; Sei swears to Kenna that she will escort Dom safely home to the Blackspine Mountains, and will return with him (once he has mastered his powers) to fight in the wars to come.

Fulfilling her vow, Sei and Dom arrive at the tribal village to find that many of the tribe members have been captured by Hex, who intends to use them (and fire-magic) to fight on behalf of the Nevrakis. Luckily, Sei and Dom are able to free the captive villagers