Book one:The visitor/Sorrelfern's kits

''The Visitor/Sorrelfern's kits is the first book Sky And The Clans series. This series is created by me.''
 * So there's a cat named Ivybrooke,and then this visitor,also called Ivybrooke,comes and claims that she is a Skyclan ancestor. This visitor cause multiple troubles,so why exactly has she come?
 * Also at this time,the elder Brightstripe,thinks that an apprentice Acorn,is prophisized.
 * Sorrelfern's Kits is about how Sorrelfern became mates with a cat from another clan,which is against the code. Soon she has Smoke,and Apple,her two kits. Find out how,and why she went against the code.