// Create Horn of Geryon
        {
            int islot = get_item_slot();
            if (islot == NON_ITEM)
                break;
            mitm[islot].base_type = OBJ_MISCELLANY;
            mitm[islot].sub_type  = MISC_HORN_OF_GERYON;
            mitm[islot].plus      = 0;
            mitm[islot].plus2     = 0;
            mitm[islot].special   = 0;
            mitm[islot].flags     = 0;
            mitm[islot].quantity  = 1;
            set_ident_flags( mitm[ islot ], ISFLAG_IDENT_MASK );
            move_item_to_grid( &islot, you.x_pos, you.y_pos );
            msg::streams(MSGCH_DIAGNOSTICS) << "Made "
                                            << mitm[islot].name(DESC_NOCAP_A)
                                            << std::endl;
        }

        mpr( "You can't go up here!" );

        if (ygrd == DNGN_STONE_ARCH)
            mpr("There is nothing on the other side of the stone arch.");
        else
            mpr( "You can't go up here!" );

        mpr( "You can't go down here!" );

        if (grd(you.pos()) == DNGN_STONE_ARCH)
            mpr("There is nothing on the other side of the stone arch.");
        else
            mpr( "You can't go down here!" );