From the NannyMUD documentation

LAST CHANGE

2000-12-15

FUNCTION

NAME
        query_level - get the level of a living object


LOCATION
	/obj/living.c

SYNTAX
	int query_level();

DESCRIPTION
	Used to determine the level of a living object.


RETURN VALUES
	In players:
		1 - 19  Mortal
		20 - 50	Wizards


SEE ALSO
        set_level in std/monster/basic_monster