Smolder by Stuart Woods, a continuation of the high-energy thrillers associated with the author, carries forward the torch with an engrossing narrative, although penned by Brett Battles. This collaboration or ghostwritten transition maintains the authentic vibe of a Stuart Woods' sequence, ensuring that longtime fans and newcomers alike remain glued to the rapidly unfolding plot.

The novel dives directly into the action, a characteristic feature of Woods’ works. The story revolves around the intriguing characters whom readers of Stuart Woods will find familiar, yet with Brett Battles' unique narrative additions that add a new depth. This synergy between the authors is mostly seamless, offering a narrative that is both fresh yet recognizably part of the franchise.

The protagonist of Smolder, who continues from previous books in the Woods' franchise, is thrust into a vortex of crime, mystery, and peril. The novel is set against a backdrop that shifts between urban and exotic locales, providing a rich tapestry that enhances the storyline’s gripping allure. The plot, thick with espionage and suspense, is punctuated by potent dialogue and well-timed action sequences, making it a compelling read from start to finish.

One of Brett Battles' contributions to the narrative is perhaps an increased focus on the psychological depth of characters. This is evident as the novel spends considerable time exploring the inner conflicts and motivations of its key players. While some purists might argue that this detracts from the brisk pacing typical of a Woods’ adventure, it undeniably adds a layer of sophistication not always present in earlier works. This shift could be seen as a positive evolution, bringing a richer character-driven narrative to the series.

The writing style maintains the lucid and accessible form that fans of Stuart Woods have come to expect. Battles has done an admirable job of keeping the sentences sharp and momentum quick, with chapters often ending on cliffhangers that make the book hard to put down. The language is straightforward, yet vivid enough to paint clear mental images of the unfolding drama, allowing the reader to effortlessly visualize scenes ranging from tense boardroom negotiations to heart-stopping chases.

Despite these strengths, the book is not without its pitfalls. Some plot points feel somewhat predictable, and at times, the transition between scenes or chapters comes off as too abrupt, potentially disorienting readers. This might be attributed to the challenge of balancing Woods' traditionally fast-paced, plot-driven storytelling with the more introspective and nuanced approach introduced by Battles.

Furthermore, while the central plot is engaging, some subplots do not seem to receive the resolution they deserve, leaving a few questions unanswered. This might be a setup for follow-up books but could be a point of frustration for readers who prefer neatly tied-up endings. Additionally, with the introduction of new characters, there is a noticeable shift in dynamics that might not sit well with all fans. It is, therefore, a juggle between innovation and maintaining the essence of the original series—a juggle that is mostly successful, albeit with minor stumbles.

In terms of themes, Smolder tackles contemporary issues, weaving them through the subplot in a manner that is thought-provoking yet not overbearing. The narrative smoothly integrates discussions about corporate espionage, digital warfare, and personal integrity, resonating well with modern-day concerns without becoming preachy or losing the primary focus of entertainment.

The conclusion of the novel, while satisfying to an extent, leaves open ends that may be perceived either as an ingenious setup for future novels or as slightly unsatisfactory, depending on individual reader perspective. It does, however, underscore the ongoing nature of the protagonist's battles both in his personal and professional life, suggesting that readers can expect more intriguing developments in future installments.

In summation, Smolder by Stuart Woods, continued by Brett Battles, is an engaging thriller that mostly maintains the spirit of its predecessors while introducing fresher, deeper character examinations. It might adjust the formula slightly but does so without alienating the core audience. For anyone looking for a fast-paced, plot-driven read enriched with a bit more psychological depth, this would be a recommendable choice. It manages to smolder indeed, with the promise of bursting into a flame in its sequels.