-
dr watson and sherlock holmes are alerted to a murder
-
they split up and find myysterious objects such as a bell pull that doesnt work and a ventilator joining rooms
-
sherlock and watson wait at an inn for the signal to let them know that they need to go inside the house and investigate the room more thourghly
-
sherlock finds a snake and feeds it back through the ventilator to its master and kills him
