If the psychic parts of the Zandra stories are interesting to you, I *highly* recommend “Phenomena: The Secret History of the U.S. Government's Investigations Into Extrasensory Perception and Psychokinesis” by Annie Jacobsen.
It’s non-fiction, and it goes into the history of psychics and the U.S. military, all pulled from primary sources and declassified documents. The research and journalism that went into it is incredible.
It doesn’t so much make a case for or against the existence of psychics as it does show how the military approached the subject. To that end, the most shocking revelation is how much money was thrown at the issue, and how both sides of the Cold War used psychics as counterintelligence tools.
That isn’t to say there isn’t a there there, but there’s a lot of room for interpretation.
When you’re done with “Phenomena,” balance it out with a book about statistics, like “The Drunkard’s Walk: How Randomness Rules Our Lives.”
If that’s too much of an ask, I’ll offer this summary of one of my favorite Nassim Nicholas Taleb pieces:
“Randomness has no obligation to appear random.”