Are there any black mirrors or bookcases?
No, there is a bookcase but it is green.
    src        edge_attr  dst
0     0  to the right of    9
1     0   to the left of    3
2     1  to the right of    9
3     1  to the right of    7
4     2  to the right of    7
5     2  to the right of   10
6     2  to the right of    9
7     3  to the right of    0
8     3  to the right of    9
9     3  to the right of    7
10    3  to the right of   10
11    5  to the right of    9
12    7   to the left of    3
13    7   to the left of    1
14    7   to the left of    2
15    9   to the left of    1
16    9   to the left of    3
17    9   to the left of    5
18    9   to the left of    2
19    9   to the left of    0
20   10   to the left of    3
21   10   to the left of    2