cruelty:  Law behaviour which causes physical or mental harm to another, whether intentionally or not.
 inventor:a person who invents, esp. as a profession 
 misery:a cause of such unhappiness, discomfort
invention:the act or process of inventing 
 frustrated: having feelings of dissatisfaction or lack of fulfilment  
inscription: a signature or brief dedication in a book or on a work of art 
