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A member of Brynhild's Daughters whose Glass Prison spell lets the team bypass a Kravyad's portal.
Sadie is one of the Daughters, notable on The Iron Tangle for casting her Glass Prison spell on a Kravyad at substation H — imprisoning the hypnotic naga so the whole team could pass through its lifebound employee portal without killing it. Her spell is part of the deep, varied toolkit that makes Hekla's large team so capable.
Not described beyond being one of the women crawlers of the Daughters.
A Daughters spellcaster who enables the team's portal escape.
Also appears in books you've already read — spoiler-safe to their endings: