What is the author's style in The Emperor's Children by Claire Messud?

The vocabulary in this novel is well above the standard usage, and the average reader will find the need to have a dictionary handy while reviewing this book. This use of language is a tool by the author to display the high intelligence of Murray Thwaite, and to emphasize the richness of his environs. Chapters involving Judy, Aurora, or Randy employ a simpler tone, as these characters represent the people who have chosen a more down-to-earth life.