So, I teleported home and looked around at the snowy Whimsy (Whimsical?) landscape... and was amazed to find that a mountain of snow had taken up residence in my humble abode!
It wasn't an object... somehow the very terrain had changed, and it simply erupted through the building.
Cheyenne kindly set things right.... but why it happened remains a mystery.
I think I'd best make an offering to Pele; according to the stories, she can be an angry goddess.