The term 'It May Be Written In Stone' can be summarized by two crossword solutions: RIP (3 letters) and RUNE (4 letters). RIP is an acronym for 'Rest In Peace, ' which is a phrase used to express condolences to someone who has passed away. RUNE is an ancient form of writing that was used in many cultures, including the Norse and Anglo-Saxon cultures. Runes were typically carved into stone or wood and were believed to have magical properties. Thus, the phrase 'It May Be Written In Stone' suggests that something is permanent and unchangeable, much like the words carved into stone or wood with runes.