@Override
	public boolean invoke(MOB mob, Vector commands, Physical givenTarget, boolean auto, int asLevel)
	{
		final Item target=getTarget(mob,null,givenTarget,commands,Wearable.FILTER_ANY);
		if(target==null) return false;

		if(!(target instanceof Scroll))
		{
			mob.tell(_("You can't clarify that."));
			return false;
		}

		if(((Scroll)target).usesRemaining()>((Scroll)target).getSpells().size())
		{
			mob.tell(_("That scroll can not be enhanced any further."));
			return false;
		}

		if(!super.invoke(mob,commands,givenTarget,auto,asLevel))
			return false;

		final boolean success=proficiencyCheck(mob,0,auto);

		if(success)
		{
			final CMMsg msg=CMClass.getMsg(mob,target,this,verbalCastCode(mob,target,auto),auto?"":_("^S<S-NAME> wave(s) <S-HIS-HER> fingers at <T-NAMESELF>, uttering a magical phrase.^?"));
			if(mob.location().okMessage(mob,msg))
			{
				mob.location().send(mob,msg);
				mob.location().show(mob,target,CMMsg.MSG_OK_VISUAL,_("The words on <T-NAME> become more definite!"));
				((Scroll)target).setUsesRemaining(((Scroll)target).usesRemaining()+1);
			}

		}
		else
			beneficialWordsFizzle(mob,target,_("<S-NAME> wave(s) <S-HIS-HER> fingers at <T-NAMESELF>, uttering a magical phrase, and looking very frustrated."));


		// return whether it worked
		return success;
	}