God calls down to Noah and says, "Noah me old china, I want you to make me a new Ark".
Noah replies, "No probs God, me old Supreme Being anything you want after all you're the boss."
God interrupts: "Ah, but there's a catch. This time Noah, I dont want just a couple of decks, I want 20 decks - one on top of the other".
"20 decks", screams Noah. "Well, OK boss, whatever you say. Should I fill it up with all the animals just like last time?"
"Yep, that's right, well sort of right this time I want you to fill it up with fish", answers God.
"Fish?", queries Noah.
"Yep, fish well, to make it more specific Noah, I want carp - wall to wall, floor to ceiling. Carp!"
Noah looks to the skies. "OK God my old mucker, let me get this right, you want a New Ark?"
"With 20 decks, one on top of the other?"
"And you want it full of Carp?"
"Why?" asks the perplexed Noah.
"Dunno", says God, "I just fancied a Multi-Storey Carp Ark".