Witch Way Did He Go? - Witchless in Seattle Mysteries, #8

It's me again, Stevie Cartwright. Powerless ex-witch, pseudo medium, and amateur sleuth, reporting to you live from the case of the missing ex-British spy turned ghost/quite possibly one of the most important people to ever become a part of my life. You read that right. As Win and I and all the gang were busy planning our big Thanksgiving bash, he suddenly disappeared (right in the middle of telling me what a Philistine I am for even suggesting Cheez Whiz and crackers), and it's as if he never existed.
Poof-he's just gone! No one can find him, not even Arkady, our ghostly pal and confidant on Plane Limbo. If I ever needed to make good use of everything my British spy ever taught me about sleuthing, it's right now. But I run into roadblock after roadblock until I'm almost sure all hope is lost, and I'll never hear his voice again. Worse, how will I ever live with myself if I never get the chance to tell him how I feel?