Can you get into the mansion any other way? Didn't have Tom cut off his finger!
The only other way is to go through the sewer enterance in Taurus' home. If you remember, Taurus is his right-hand man and he has access to the private chambers (peeping tom I guess)
I'd like to close by quoting Bellegar's famous last rhyme:
"Cursed be the mother that bred thee! The wench must have been a hell-spawned banshee!"