A Holmesian Solstice

of course you are right (although the message did say "secret" not "sekrit"); I have a vague recollection of thinking maybe it was for festvids? though I don't know if the timing fits at all. and then I completely forgot about it. Even if I hadn't forgotten, I'm pretty sure it would not have occurred to me that your project was a Holmestice thing from last year.