Time to light the pipe and have a good hard think.

He decides to smoke one last time and lights his pipe with the blue light.

The guest lights the candle, and he tries to light his pipe again.

Inside the tower are a circular living room and four bedrooms, lit by the original slot windows and some cleverly concealed light pipes.

I assumed he would sit in the other, but instead he leant against a table, lit his pipe and considered my first question.