The first six books center around Rusty, a kittypet (housecat) who joins ThunderClan, and finds out that there is a prophecy about him. The second series finds the forest in turmoil. "Twolegs" (humans) are destroying the forest, and a cat from each of the four Clans must go on a journey. Then, all the cats must find a new home. This involves mostly Leafpool and Squirrelflight, daughters of Rusty, now called Firestar. The third series, The Power of Three, involves Squirrelflight's "kits", Jayfeather, Hollyleaf, and Lionblaze, and the special powers that they have. The next series, Omen of the Stars, involves Dovewing and Ivypool. Dovewing has a special power, and Ivypool doesn't, but she trains in the "Dark Forest," their version of Hell, to try and be a better warrior than Dovewing. They must save all of the Clans, along with the three cats from The Power of Three. The next series, Dawn of the Clans, focuses on the creation of the Clans. A Vision of Shadows, the next series, focuses on Alderheart, who is Squirrelflight's son, along with Twigbranch and Violetshine, who are kits from SkyClan that were separated from their Clan at birth. They must find SkyClan and help them settle by the lake with the other Clans. This plan is complicated by Darktail, a very powerful and charismatic cat who has come to destroy all of the Clans. The Broken Code is the next series, which focuses on Shadowsight, Bristlefrost, and Rootspring. ThunderClan's leader has been replaced by an impostor, and StarClan is silent. It is their duty to save both Bramblestar and StarClan.