In "Mystic Arcana: Sister Grimm" McNee is quietly working in his shop when Marie LeVeau steps in. LeVeau gives a gift that he reluctantly accepts. It is the last page of the infamous Darkhold she received from the Dark Mirror. LeVeau states that she has turned a new leaf and wants to help Ian. With that, she disappears in a cloud of smoke. Almost immediately after, the Bright Lady appears and instructs Ian to perform the ritual. Ian questions Oshtur's choice of him to perform the task, stating that perhaps Dr. Strange would be better suited to the spell. Oshtur urges him to complete the spell and Ian finally agrees. Once the Cornerstones are gathered, Ian begins by connecting to the guardians of the other three cornerstones, Llyra, Morgan Le Fay, and Ashake. After Ian successfully breaks the spell containing the essence of Heka-Nut, Oshtur finally reveals that she is in fact not Oshtur, but the Darklord Chthon. Chthon reveals his plans of world domination using the four cornerstones, at which point Ian and the others counter Chthon's deception and begin to attack him. Ashake pleads with Heka-Nut to remember his humanity and the goodness that is within him. They rekindle their friendship and Ashake releases his soul from Ian's body by slicing through his spirit with the Sword of Bone. With the spell broken, the sorcerers are released from the chaotic swirl of mystic energy. Somehow, Ashake is pulled from her timeline into the present. Chthon tells Ian that because he used the Darkhold's magic to restore the balance between the cornerstones, he tainted his soul and part of it now belongs to Chthon. Ian loses a part of his soul and Ashake is now "lost" in the present. At this point, the real Oshtur reveals herself and tells the heroes that all is not lost and the balance in magic must truly be restored. She instructs them to rest, as they will be the sorcerers charged with restoring that balance.