There were three distinct stages in the evolution of Annette Brougham's
attitude towards the knocking in the room above. In the beginning it
had been merely a vague discomfort. Absorbed in the composition of her
waltz, she had heard it almost subconsciously. The second stage set in
when it became a physical pain like red-hot pincers wrenching her mind
from her music. Finally, with a thrill in indignation, she knew it for
what it was--an insult. The unseen brute disliked her playing, and was
intimating his views with a boot-heel.

Defiantly, with her foot on the loud pedal, she struck--almost
slapped--the keys once more.

'Bang!' from the room above. 'Bang! Bang!'

Annette rose. Her face was pink, her chin tilted. Her eyes sparkled
with the light of battle. She left the room and started to mount the
stairs. No spectator, however just, could have helped feeling a pang of
pity for the wretched man who stood unconscious of imminent doom,
possibly even triumphant, behind the door at which she was on the point
of tapping.

'Come in!' cried the voice, rather a pleasant voice; but what is a
pleasant voice if the soul be vile?

Annette went in. The room was a typical Chelsea studio, scantily
furnished and lacking a carpet. In the centre was an easel, behind
which were visible a pair of trousered legs. A cloud of grey smoke was
curling up over the top of the easel.