Gr. 6-9. The saga continues in the fifth book in the Warriors series as the cat Fireheart, now deputy leader of Thunderclan, finds himself taking on even more responsibility because clan-leader Bluestar is both physically and mentally ill. Add to that the dangerous machinations of treacherous Tigarstar, the head of Shadowclan, and a pack of renegade dogs. Bluestar becomes certain that all the members of her clan, including Fireheart, have betrayed her; the ancestral Starclan cats have abandoned her; and Windclan is hunting in Thunderclan's territory. After Bluestar declares war, it's up to Fireheart to find a way to avoid the battle. Hunter maintains the established characterizations of his sentient cats, who still retain their feline natures. With compelling intrigue and fast-paced actions, this is one of the most exciting books in the series--and, happily, there's another volume to come. Sally Estes