Cormac McCarthy concluded his life with two books about two siblings, brother Bobby (the protagonist of the excellent The Passenger) and sister Alicia of Stella Maris. The former is a physics whiz, the latter a maths genius. The trouble (or karma) of their family, including their father's involvement with the Manhattan Project, haunt them.

Both books are philosophical musings on meaning and structure in a strange life. This one is a real gift. The entire story is a dialogue between Alicia and a counsellor in the Stella Maris institute. Alicia muses on life and maths. The dialogues are like Plato's, with different big ideas being drawn out and then punctuated with a touching story of family, hallucinatory friendship, longing and heartache. The dialogue evolves over the 'sessions' so seamlessly that it is impossible not to get lost on the journey with the duo. The questioner often pulls back just when we (the reader) want to know more, and later as familiarity grows the relationship changes between them, and between reader and characters. The achievement that this book is is hard to describe, but it is a worthy parting gift from a master craftsperson of the written word.