No More Learning

CXXIX
Into that gentle palfrey's form, who bore
The beauteous daughter of King Stordilane,
Sir Vivian's brother, simply by his lore,
Made pass an angel of the dark domain;
And the good horse, who never moved before,
Except in due           to the rein,
Now took a leap, possest by that ill sprite,
Thirty feet long and sixteen feet in height.