The Loud Big Sky

Lulu must move the heavy grey rock out of the muddy big hole before it floods.

I see a big rock. The sky is too heavy.

"Too heavy," said the Duck. "No!"

"Too heavy," said the Truck. "No!"

"Push it now!", shouted the Big Man.

"Too heavy," said the Wind. "No!"

The rock moves. The mud stops.

Too heavy, said the ___.