I put it in a torn lilac cloak by accident in the TSC I saw my mistake went back and both the cloak and staff have gone, GM confirmed someone has it. The funny thing is exactly the same thing happened to me with my wallet when I was a student, I left on the seat next to me on the train got up walked 3 steps realised my mistake turned around later wallet gone all in about 5 seconds...
edit - This is from my log xxx put a twisted illthorn scepter capped with a glowing verdant orb in a torn lilac cloak.