Booklists starred review commented that '' ... Riordanâ s imagination soars in the climactic battle scenes '' but said that he manages to `` bring the whole series to a satisfying close in the down-to-earth conclusion . '' Booklists starred review commented that '' ... Riordanâ s imagination soars in the climactic battle scenes '' but said that he manages to `` bring the whole series to a satisfying close in the down-to-earth conclusion '' .