The tome that lay open on the desk looked fairly new, but was already heavily bookmarked. Tara had seen the cover a few times on the train down to Colwdvatn, enough to know that it was a volume of the Registry of the Novus Packus Magicae, which Seema had told her was a registry of known rune circuit patterns. Olsen had freely, and she suspected unwisely, admitted to not knowing how to read rune circuits. Clearly, this wasn’t on the local curriculum.

With a gleam in her eye, the Tinlander had dragged the two of them upstairs to the bedroom and sat down at her desk with Tara over her left shoulder and Finn to her right. The tome had been lying open on page 220 or 229 before, but the other girl had quickly turned to page 15. This bore the title “Simple Light Circuit.”