"I remember Firdausi's poem after a fashion only," Cosmo answered. "Was not Rustem a Persian Hercules, so to speak?"
"That's it precisely," the other responded, "and he had seven labors to perform; and you dreamed the third of them, the slaying of the grisly dragon. For my own part, I think I should have preferred the fourth of them, the meeting with the lovely enchantress; but that's neither here nor there."
"It seems to me I do recollect something about that fight of Rustem and the strange beast. The faithful horse's name was Rakush, wasn't it?" asked Waynflete.
"If you can recollect the 'Shah-Nameh,'" Stuyvesant pursued, "no doubt you can recall also Beaumont and Fletcher's 'Custom of the Country?' That's where you got the midnight duel in Lisbon and the magnanimous mother, you know."
"No, I didn't know," the other declared.
"Well, you did, for all that," Paul went on. "The situation is taken from one in a drama of Calderon's, and it was much strengthened in the taking. You may not now remember having read the play, but the incident must have been familiar to you, or else your subconsciousness couldn't have yielded it up to you so readily at the suggestion of the Spanish coin, could it?"
"I did read a lot of Elizabethan drama in my senior year at college," admitted Cosmo, "and this piece of Beaumont and Fletcher's may have been one of those I read; but I totally fail to recall now what it was all about."
"You won't have the cheek to declare that you don't remember the 'Legend of Sleepy Hollow,' will you?" asked Stuyvesant. "Very obviously it was the adventure of Ichabod Crane and the Headless Horseman that the York shilling suggested to you."
"I'll admit that I do recollect Irving's story now," the other confessed.
"So the embroidery on the dream-gown gives the first of your strange situations; and the three others were suggested by the coins you have been using as buttons," said Paul Stuyvesant. "There is only one thing now that puzzles me: that is the country church and the noon wedding and the beautiful bride."