1 Words to use with tremblers

A large, mahogany-faced safe was fixed in the dining-room to contain the silver; a burglar alarm was fitted under the floor in front of the safe and connected with a trembler-drum that was kept (with the concussor and a few other appliances) locked in a hanging cupboard at my bed-head, ready to be switched on and placed under my pillow at night.

1 Words to use with  tremblers