Canto

1     2| mountain-robber's den,~Compassed with cliffs, or follow one who flies.~
2     2|         masterless, to ride~Along the cliffs, and passes least forlorn;~
3     2|           caverned mountains and rude cliffs appear;~Where in the middle
4     2|               But you would climb yon cliffs, and for your gains~Will
5     4|           leaves all the neighbouring cliffs below.~He may not scale
6    34|            Not tower, save one, where cliffs forbade access:~'Twas here