As regular Bunker Notes readers will know, here at CAG we have some form when it comes to receivng mysterious parcels.
Could it be that we're getting ready to install another Rolling Maul exhibition at NG? Only time will tell, but in the meantime, here's the biggest clue you're getting for now...
A wander down one of the back-of-house corridors at the Gallery this morning revealed the following.
But what's inside? And what could it all possibly mean?