The Diamond Serpents Books in Order

A baseball catcher focused on reaching the professional leagues becomes fixated on soccer player Teresa Reynova, who refuses to date him. When he witnesses something he can use against her, his pursuit turns into an attempt to blackmail her into a relationship.

A privileged baseball player uses blackmail to secure three months with Roxie Marquez, expecting a temporary diversion. Her resistance challenges his certainty, and spending time together leaves him facing feelings that threaten to overturn his calculated arrangement.

A college baseball player becomes fixated on Sadie Flores, secretly watching her instead of introducing himself. When circumstances force him out of hiding, his determination to win her turns an ordinary attraction into an increasingly consuming obsession.

A baseball player has followed his best friend Callie to college while concealing feelings that have become obsessive. Keeping his distance fails to quiet them, and seeing her date someone else pushes him toward revealing what he has hidden.