Luminous Adra

Luminous or living adra is an unique and tremendously powerful form of the material found around Ondra's Teeth, rising through the ground in the same iconic pillars as the one found elsewhere. Vast reefs are known to exist across the archipelago, with ships running aground on them with disturbing regularity. Long believed to be just a curiosity, differing from regular adra only in the ethereal light it gives off, it wasn't until recently that interest in it - and Ondra's Teeth - picked up.
The driving force behind this was its expansive capacity for soul energy. A single shard could hold as much power as a wagon loaded with regular adra and the first tentative studies by animancers allowed animancy research to explode in the years following the Hollowing. Studying previously unheard-of volumes of soul energy, animancy could make dramatic leaps forward as a science, allowing for the creation of reliable constructs (previously limited to the most eccentric of animancers with access to human souls), machines capable of harnessing the power of the soul, and allowing regular people to glimpse forces normally beyond their perception - a trait previously restricted to Watchers. Given that adra formations have a connection to each other, across the In-Between, a group of researchers proposed that it could be possible to transport people long distance by harnessing this energy and opening portals to the In-Between, revolutionizing travel and transportation for the VTC.