Coal Sack

Like I did with the coal sack.

I was thinking of the coal sack.

In many regions its light is interrupted, especially in Centaurus, where a dark starless region exists, known as the "coal sack."

The half-drowned, but wholly frightened Rob is carried back to his comrades' boat, and dumped in among them; Wingate handling him as though he were but a wet coal sack, or piece of old tarpaulin.

The half-drowned, but wholly frightened, Bob is carried back to his comrades’ boat, and dumped in among them; Wingate handling him as though he were but a wet coal sack or piece of old tarpaulin.