Alter Aeon Online Help

Keywords are:  'scan'

Usage:
scan
scan <direction>

Scanning will allow you to see the monsters in surrounding rooms, up to six
rooms away.  It will not work if the exits are blocked, or if the rooms are
dark.  You may also look in each direction to see what is in other rooms.
You can also specify a direction when you scan.

The 'extended sight' spell increases the distance that one can scan, and
drunkenness reduces the distance.

Note that scan does not look upward or downward.