Description
A number of parchments were found folded in Corthana's spellbook. I believe that these have something to do with a machine they built to help them defeat Regulos. The symbology is reminiscent of items we found at the Codex.
Upon completion
Brilliant, positively brilliant! This cipher will help me figure out how the ancients recorded their studies, and thus, how to interpret the symbols on these particular plans...