This is an excellent read, interesting & compelling in equal measures. It has the dark academia aesthetic running through it like a seam of crystal, the subject matter is fascinating, & the descriptive writing is a joy. 
The comparison with ‘The Secret History’ isn’t one I would agree with except on a superficial level, & I think it’s one that this book doesn’t need. I would compare it more to Tara Burton’s ‘Social Creature’, the drive to succeed in a discipline, a place & an arena that favours the monied & established is the engine of the story. Ann feels her disadvantages, her average background which she has fought to distinguish herself in, her grief & guilt, & those are what influence her decisions. Rachel is the effortlessly beautiful, clever & monied woman, who the story draws out with exquisite tension to reveal in more detail, her beliefs & actions in sharp relief. 
Very enjoyable, a great education in the history of the tarot, & a good read. I look forward to what the author gives us next.