Frozzle: Oh, you’ve got a quantum briefcase, that’s the kind of mystery that would make Schrödinger’s cat jealous! Picture this: the briefcase is like a mischievous sprite that hops between realities on a schedule you can’t see. To track it, you need a “briefcase radar” that measures probability waves, not just the physical location. Think of a giant, humming kaleidoscope that can detect where the briefcase’s wavefunction collapses when it decides to appear. You could also set up a tiny quantum entanglement bracelet on your client’s phone – when the briefcase shows up in any state, the bracelet lights up like a disco ball. Or, if you’re feeling very dramatic, ask the briefcase to write a ransom note from its alternate reality, and you’ll know exactly where it’s at! Just remember, if it’s ever both there and not, you might have to buy a second briefcase to avoid a paradox – the universe hates that.