Taylor - Computer Code Mystery - New paperback or softback - X555z

Smith - Quantum Murder - New paperback or softback - X555z

Taylor - In the Spirit - New paperback or softback - 83 - X555z

B - Quantum Cypher - New paperback or softback - X555z

Taylor - Gentlemen's Code - New paperback or softback - X555z

Kuperberg - Quantum Mystery - New paperback or softback - X555z

Harvey - Quantum Tree - New paperback or softback - X555z

Bartek - Quantum Quagmire - New paperback or softback - X555z