John Willard - Cat And The Canary

Synopsis:
The story starts, naturally, on a wild and stormy night at a Gothic mansion. 
Exactly 20 years after his death, Cyrus West's eccentric 
relatives have been summoned for the reading of his 
will. Considered mad by his family while he was alive, 
West has taken the opportunity to wreak revenge from 
the grave by disinheriting his next of kin. Instead, 
he's chosen his distant relative Annabelle West – so 
long as she can be proven to be of sound mind after 
spending a night in the creepy house. If she's not, 
the money will go to a secret heir named in an envelope 
held by the lawyer, Mr Crosby. As soon as he's dropped 
his bombshell, Crosby disappears – removed from the 
proceedings by a disembodied hand. The disgruntled 
guests are left in an uproar, suspicious of every 
bump and squeak, and of Annabelle in particular: she 
too fears for her own safety. After interruptions all 
night by unwelcome guests – including a cat-like claw 
which appears from nowhere and steals her diamond 
necklace – Annabelle must undergo a sanity test given 
by a sinister doctor. Is she mad? Is there a murderer 
at large? Does the ghost of Cyrus West still walk?