Order of ACRO Books
The ACRO series delivers paranormal/erotic romance from the writing duo Sydney Croft (comprised of Larissa Ione and Stephanie Tyler). Set within the Agency for Covert Rare Operatives—which gives the series its name—this world features specialized departments staffed by operatives possessing extraordinary abilities including telekinesis, psychic powers, and expertise in extraterrestrial investigations, among others. These gifted agents work tirelessly to defend the United States against the malevolent Itor Corporation, a dangerous organization poised to attack at any moment.
Launching in 2007 with Riding the Storm, the series features interconnected storylines, with the initial trio of "Storm" novels sharing particularly tight narrative bonds while the subsequent "Fire" books maintain looser connections. Despite these links between books, readers can dive into any novel without prior series knowledge, as each installment offers a complete, self-contained romance. The following list presents Sydney Croft's ACRO novels arranged by their original publication dates:







