Alter Aeon Online Help

Keywords are:  'thief skill locks picking lockpicking'

Skill: lock picking             Lvl  4 Thie  (21%)
                                (important)   
                                Group: Thief tinkering

Usage:
pick <door>
pick <door> <direction>
pick <object>

'Lock picking' is a thief skill used to open locked doors and containers.
While anyone can attempt to jimmy a lock open, a trained thief can do
so much more quickly and efficiently. A thief's level and intelligence
both come into play when picking locks.

Locks vary in difficulty. Some locks, through artifice or magic, cannot
be picked, and will require a key to unlock.