I was quite intrigued when I picked up this novel, because it is partly based on the journals kept by Victor Hugo about his spiritualist experiments during the first years of his self-imposed political exile from France, when he and his family were living on Jersey in the Channel Islands.

The novel suffers however from uneven pacing as Rose juggles four
different story lines, and although she constantly repeats the mantra
"there are no coincidences," so much of her story depends on
coincidence that it loses credibility. The story line that draws most on
Hugo's journal is the best written; but the rest of the characters are like
bad actors reading from a worse script.