void main() {

object oClicker = GetClickingObject();
object oTarget = GetTransitionTarget( OBJECT_SELF );
location lLoc = GetLocation( oTarget );
if ((GetHitDice(oClicker) >= 18) && (GetHitDice(oClicker) <= 40)) {
AssignCommand( oClicker, JumpToLocation( lLoc ) );
} else {
SpeakString( "You need to be 18th level or more to access this area " + "." );
}
}