Here be dragons

There is a dragon in the walls 
And it is snoring 
Slow 
Softly 
At the edge of hearing

There is a dragon in the walls 
And it is snoring 
We must move quietly 
Breathe silently 
Whisper 

There is a dragon in the walls 
And it is snoring 
If it awoke there would be 
A fierceness of teeth and breath 
Destruction 

There is a dragon in the walls 
And it is snoring 
Tomorrow I will call 
The exterminator