Warriors (Erin Hunter). Vision of shadows

After Alderpaw returns from the gorge that was once home to SkyClan, the ferocious cats who drove SkyClan out trace Alderpaw's path back to ShadowClan, making it their next target.

SkyClan has returned to its rightful place among the other four warrior Clans, hoping to find a new territory to call home. But not every cat is convinced that this is where SkyClan belongs-and the fate of all five warrior Clans remains uncertain. Full of epic adventure and thrilling intrigue, this fifth Warriors series is the perfect introduction for readers new to the Warriors world-while for dedicated fans, it's a long-awaited return to the era...

"As StarClan warns of an oncoming storm, the five warrior Clans by the lake must decide what they are willing to sacrifice to make a permanent home among them for SkyClan"--