Behind the Looking Glass demonstrates how nineteenth century currents of spiritualism, theosophy and occult philosophy co-mingled with Carroll’s interest in revived Platonism and Neoplatonism, showcasing the Alice and Sylvie and Bruno books as unique points of conjunction between Carroll’s intellect and spirituality. The scholarship in this work, while rigorous, is softly mixed with the kind of academic frivolity that Carroll himself might have enjoyed. Ackerman exposes a Carroll who, having lost belief in the theological and mythological master plots of earlier eras, turned toward the imaginative fiction of wonderlands rife with philosophical content in response to his instinctive hunger for cosmic coherence and existential order.