Name: query_night_desc - get the night description from a room

Syntax:
	#include <room2.h>
	string query_night_desc()

Description:
	The query_night_desc call returns the night description from a room,
	set with set_night_desc.

Return value: A string containing the night description

Examples: 
	string desc;
	desc=query_night_desc();

See also: room/set_night_desc, room/query_long, room/query_day_desc