He actually had a serial in the Mishpacha some years ago, essentially a sequel to Every Man A Slave. It was then published as a book.
I liked Aleph Shin/Ten Lost. I found it to be very creative, albeit fantastical. Agree that some parts wouldn't be very acceptable to a heimishe library, and I'm not talking about the continuous "bone-crushing" action that goes on.
At the risk of posting spoilers - suffice to say it is the most inventive Mossad plotting you could dream of, and Moshiach himself may or may not be involved in hand to hand martial arts combat.
Plus being invloved in almost every significant event in Jewish history since WW2, including Yossele Shuchmacher, Six Day War, and epes a famous spy swap between the US and Israel...