From the NannyMUD documentation

LAST CHANGE

2000-12-12

FUNCTION

NAME
        _signal_mortal - _signal_mortal - the player just returned to mortality.


LOCATION
        Can be placed in any object.

SYNTAX
        void _signal_mortal();

DESCRIPTION
        When a wizard turns mortal by choice from the first wizard level,
        this function is called in every object in his inventory. This
        allows guildmark etc. to generate appropriate messages on the lines.

        If the function returns 1, the standard message won't be written to
        the player.


SEE ALSO
        _signal_wizard in lfun/_signals/_signal_wizard