Twenty Years After his own service to Mazarin, he refuses to watch over the Duc de Beaufort, who is imprisoned at the time, and soon learns that, in consequence, he is to be returned to the Bastille, though this does not deter him from speaking highly of the achievements of d'Artagnan and the Three Musketeers. Having determined that d'Artagnan is the man he seeks, Mazarin enters the chambers of the Queen to let her know that he has enlisted the man who had served her so well twenty years earlier. The Queen, feeling guilty for having forgotten d'Artagnan's service, gives Mazarin a diamond
The Twenty Years' Crisis of trends in the discipline, edited by Michael Cox, Tim Dunne, and Ken Booth, who write that "many of the arguments and dilemmas in Carr's "The Twenty Years' Crisis" are relevant to the theory and practice of international politics today", praising the book as "one of the few books in the 80 years of the discipline which leave us nowhere to hide". The response to Carr has not been, however, entirely positive. Caitlin Blaxton criticized Carr's moral stance in the work as "disturbing". Scholars have also criticized Carr for his presentation of the so-called realist-idealist conflict. According to Peter Wilson,