We now know what tarsaline is. I know this seems out of character for Arsha but consider her position right now. Her claim to the Mid-realm’s throne, and the claims of Lardeth and Malnar to the thrones of their respective Realms, are on the line. The war has dragged on for too long. There’s a solution available, but it requires the help of her world’s Destroyer god. That would make anyone desperate enough to resort. 20th Century American history alone proves that.