07/17/2011 06:44 pm ET Updated Sep 16, 2011

A Deadly Dance: A Dance With Dragons by George R.R. Martin

Was it worth the wait? That is likely the most burning question facing readers of George R. R. Martin's mammoth Song of Ice and Fire series regarding its fifth and latest installment, A Dance with Dragons. This book's release was famously delayed for years, drawing a barrage of reader outrage so intense as to attract comment from the likes of Neil Gaiman, Guy Gavriel Kay, and Laura Miller of The New Yorker.

So perhaps it is apropos to state from the outset that in A Dance with Dragons, the gargantuan task of the author becomes more apparent than in any of the prior volumes. The first three books centered upon the power struggles of the denizens of Houses Stark and Lannister, a metaphoric parallel to the War of the Roses' protagonists York and Lancaster. But the story has since expanded so far beyond these original characters as to become a labyrinthine edifice, encompassing myriad characters, cultures, intrigues, and mysteries -- of which many were set in motion early in the series. Such confounding intricacy probably cannot be rushed, however frustrating the wait for legions of fans craving plot resolution.

And who can blame them? As the story grows in complexity, it becomes more tantalizingly suspenseful. If characters who appear essential can be killed off without warning -- a device Martin uses frequently to devastating effect -- then truly anything can happen. The suspense is finely honed as a knife's edge, ensuring that readers are always left hungry for more.

Roughly the first half of Dance runs in tandem with the timeline of the previous book, Feast for Crows, from the points of view of different characters, before progressing past that timeline into uncharted waters. The decision to split one book into two weakened Feast for Crows, which moved at a snail's pace and introduced a bewildering new cast of characters, without addressing questions left open at the end of the third book. In contrast, Dance has the feel of a tight, self-contained volume, with strong themes emerging even amid the scattered plotlines of some half-dozen characters. It may in fact be the first of the books since the original A Game of Thrones to possess any degree of thematic unity beyond the truism that, "When you play the game of thrones, you win or you die."

The costs of ethical rule is a theme Dance explores in depth, on opposite ends of Martin's imagined world. At Castle Black, located in the frigid north and encroached upon by the spectral Others, young Jon Snow has assumed the unlikely role of commander. Across the water in the tropical and equally perilous Slavers Bay, Danaerys Targaryen has conquered cities -- but soon learns that the task of ruling them can be even more deadly. These plotlines, unfolding in disconnect from one another, both examine the nature of leadership after the moment of triumphant conquest has passed. And both plotlines, in Martin's brutal hands, offer exquisite torment to his readers who have come to expect nothing less.

While the Danaerys plot arc is consistently absorbing, that of Jon occasionally falters. A parade of new minor characters arrives at Castle Black, while Jon's most trusted friend and emotional touchstone, Samwell Tarly, departs the scene. Consequently Jon is trapped in his own head and rarely involved in the sort of meaningful character interactions that might have made his chapters more engaging. But by the conclusion of the book, most readers will have forgotten this deficiency amid their efforts to hold on for the ride.

Another theme is marked with a stylistic change: while Martin used to title his chapters after the names of their viewpoint characters, he has since begun to vary these with descriptive titles such as "The Wayward Bride," "The Ghost of Winterfell," and so on. For some of the characters, he uses more than one such title as the book progresses, indicating seismic shifts in that character's self-identity. In a world such as this, where reversals of fortune are constant and violent deaths abound, the mutability of identity emerges as an enduring theme. In such a world, even the most powerful rulers in the land might be reduced to begging -- or lose their heads.

A Dance with Dragons is a very different creature from the third book in the series, A Storm of Swords, for many readers its dramatic pinnacle. The ferocious events of A Storm of Swords were the equivalent to the complete overturning of a chess board; the subsequent books involve a reassembling of the chess pieces into elaborate new configurations. But by the end of A Dance with Dragons, breakneck ferocity has returned to the series; and the only words the reader can trust with any certainty are those uttered to a dying man. And, of course, that winter is coming.

This review was originally printed in The Globe and Mail.