At sixty-eight he was as full of life and hope and plans for the future as a boy of eighteen.
Nemesis was coming, however.

He had got as far as Chapter LIX, which at his leisurely pace he could hardly have reached before October or November 1614, when there was put into his hand a small octave lately printed at Tarragona, and calling itself "Second Volume of the Ingenious Gentleman Don Quixote of La Mancha: by the Licentiate Alonso Fernandez de Avellaneda of Tordesillas." The last half of Chapter LIX and most of the following chapters of the Second Part give us some idea of the effect produced upon him, and his irritation was not likely to be lessened by the reflection that he had no one to blame but himself.

Had Avellaneda, in fact, been content with merely bringing out a continuation to "Don Quixote," Cervantes would have had no reasonable grievance.

His own intentions were expressed in the very vaguest language at the end of the book; nay, in his last words, "forse altro cantera con miglior plettro," he seems actually to invite some one else to continue the work, and he made no sign until eight years and a half had gone by; by which time Avellaneda's volume was no doubt written.
In fact Cervantes had no case, or a very bad one, as far as the mere continuation was concerned.

But Avellaneda chose to write a preface to it, full of such coarse personal abuse as only an ill-conditioned man could pour out.