XI
  This while, as here and there in fruitless pain
  He moves, oppressed with thought and trouble sore,
  Gradasso, Brandimart, and him of Spain,
  Ferrau, he finds, with Sacripant and more;
  Who ever toiling, like himself, in vain
  Above, that building, and beneath explore,
  And as they wander, curse with one accord
  The malice of the castle's viewless lord.

  XII
  All in pursuit of the offender speed,
  And upon him some charge of robbery lay:
  One knight complains that he has stolen his steed,
  One that he has purloined his lady gay.
  Other accuses him of other deed:
  And thus within the enchanted cage they stay,
  Nor can depart; while in the palace pent,
  Many have weeks and months together spent.

  XIII
  Roland, when he round that strange dome had paced
  Four times or six, still vainly seeking, said
  Within himself, at last, "I here might waste
  My time and trouble, still in vain delayed,
  While haply her the robber whom I chased
  Has far away, through other gate conveyed."
  So thinking, from th