There was the door, cleverly masked by vines, in a corner of the chimney stack.
To its right was a chimney stack from which a lazy feather of smoke was drifting.
The Count and his servants ran out into the courtyard to look at the chimney stack to see if smoke were issuing from it.
The finger still upon her plump lips, she led him to a small door behind the chimney stack.
Every chimney stack or other prominence should have an air terminal.
The pitch of the roof was flattened, the better to resist wind and storm, and through it arose the chimney stack.
the part of a chimney that projects above a roof, containing multiple flues
Here is how to check the condition of a chimney stack, from inside the house, from outside at ground level, and from roof level.