Now is the time to right an ancient wrong! SkyClan has been thriving for many moons under the leadership of Leafstar. But, a new prophecy poses many new challenges for Leafstar's beloved SkyClan. The prophecy orders Leafstar to bring SkyClan to the lake, where they will live alongside the other Clans. Leafstar is unsure about this, because she doesn't know how the other Clans will react to their sudden arrival. StarClan has reassured her that the other Clans must accept them. But their assurance doesn't mean the other Clans approval, will Leafstar be able to lead her clan to the lake, and if she does will she be able to secure her Clan's new home amongst the other Clans of the lake.

It has been a while since the Clans won the battle against the Dark Forest. ThunderClan is prospering under Bramblestar's leadership and the rest of the Clans have been thriving too. But a strange black liquid is covering ShadowClan's territory, killing and poisoning their prey, and ShadowClan's leader, Blackstar, decides to steal prey from ThunderClan to keep his Clan from starving. Bramblestar originally intended to attack ShadowClan, but his sister, who had fled from the ShadowClan camp when she heard that Blackstar intended to steal ThunderClan's prey, begged him not to attack them. As ShadowClan keeps pushing farther past the boundaries, will Bramblestar chooose loyalty to his sister or loyalty to his Clan?