Sea Castle

Reviewers largely praise Andrew Mayne's Sea Castle for its action, suspense, and mystery, highlighting its complex and twisty plot that keeps readers guessing. The novel is commended for its engaging pace and solid writing, with many finding it a gripping read. A significant positive is the strong characterization of protagonist Sloan McPherson, who is described as having amazing instincts and a discerning sense of justice. The introduction of Miami homicide detective Gwen Wylder also receives high marks, with her abrasive yet brilliant personality creating an entertaining and effective partnership with Sloan. The book's ability to work as a standalone, despite being the fourth in a series, is also frequently noted as a benefit for new readers.

However, a recurring criticism among series fans is the significant reduction in the signature underwater investigation elements, which many consider the unique hook of the series. The book is described as largely land-focused, with only minimal time spent near or in the water, leading to disappointment for those expecting the usual dive scenes and water-based teamwork. The temporary absence of Sloan's regular team members, Scott Hughes and George Solar, is another point of concern for some. While the plot is generally lauded for its complexity, a few reviewers found the initial pacing slower than previous installments and noted some instances where Sloan's investigative prowess strained believability.

Despite these changes and occasional critiques, the overall consensus is that Sea Castle remains an enjoyable and intense read. Many found the new character dynamic and the intricate mystery compelling enough to overcome the departure from the series' usual underwater focus. This book is recommended for readers who enjoy crime thrillers, police procedurals, and psychological mysteries, particularly those who appreciate strong female protagonists and twist-filled plots, even if they are new to the series or less concerned with its aquatic origins.