she didn't, but Holleyleaf(her daughter) revealed the secret to the clans in the book Sunrise.
First it's CROWfeather. He knew Breezepelt was Nightcloud's and his but he never knew Jayfeather, Lionblaze, and Hollyleaf were his kits. Though Leafpool tryed to tell him in "We Need to Talk" Not Leafpool's.
I believe it was Sunset. Also, in the short story After Sunset: We Need To Talk Leafpool tries to tell Crowfeather she had kits but he refused to listen.
I think she was too sad to go back to him, and she knew she could never be with him again. Leafpool tried to tell Crowfeather that she was expecting kits in the play After Sunset: We Need to Talk, but circumstances prevented her from doing so.
In sunrise Jayfeather,LionBlaze and Hollyleaf tried to tell him they were his kits and he said they weren't then at the gathering Hollyleaf explained to everyone that Crowfeather was her father and he still refused Leafpool even said something. Basically, he didn't know he had kits.
Hollyleaf.....Leafpool? Jayfeather.......Crowfeather? Hollyleaf is black like Crowfeather's almost black pelt. Jayfeather is gray which is the color of Crowfeather's pelt. Lionblaze is fiery like Sandstorm, and Firestar. In The Power of Three: Eclipse: Crowfeather praises Lionblaze but not his own son, Breezepelt......suspicous.... ---- In sunrise it said that even slender leafpool had grown quite plump. there was an official warriors play entitled "before sunrise: we need to talk" in which leafpool tries to tell crowfeather something important. the kits were born out in the forest because squirrelflight 'forgot' how close she was to kitting. leafpool was 'conviently' there and was the only one to see squirrelflight giving birth. squirrelflight's milk never came. the kits look more like Leafpool and Crowfeather than Squirrelflight and Brambleclaw. Leafpool named her Jaypaw 'feather'. Lionblaze repeatedly says (about Crowfeather) "I'm sure glad he's not my father!" in a very foreshadowing way. Squirrelflight glances at Leafpool meaningfully when mentioning saying that Hollypaw will come with her to find Crowfeather (Outcast). Jaypaw notices many instances how Leafpool seems to care about him more than a mentor/aunt should.
Ok so in books one to five (and a half) of Power of Three you should believe that Squirrelflight and Brambleclaw are Jayfeather, Hollyleaf and Lionblazes parents, except for little snippits here and there, if you read carefully. But when Squirrelflight gives out the secret, you should know exactly who their real parents are, if you refer to book five of The New Prophecy: Twilight.*Spoilers Alert! Spoilers Alert!*Ok you know how Leafpool and Crowfeather ran away from the clans, and if you go on Warriorcats.com you can read a play called after sunset, when Leafpool tries to tell Crowfeather something? And at the end, Leafpool says something like: "Goodbye, Crowfeather. I hope we don't regret not meeting here today." Oh yeah, and when Brambleclaw was deputy, and he thinks, "even slender Leafpool is looking plump." PLUMP WTH KITS! So that's like the biggest hint of all times that Jayfeather, Lionblaze and Hollyleaf are Leafpool and Crowfeather's kits.
Well, Brambleclaw never knew. Squirrelflight tolf Lionblaze, Hollyleaf, And Jaypaw but Ashfur heard and was going to tell the clan about crowfeather and leafpool scince They were Leafpool's kits but then Holly leaf set off to murder Ashfur to not tell anyone so she did but the clan still found out :3 ~Tundra
In Sunrise. When they find out he is their father, they go to the WindClan border and meet a dawn patrol. They ask them to send Crowfeather to them and they tell him that they are his kits.
In Sunrise, the sixth book in the Power of Three series, it is confirmed that Leafpool, medicine cat of ThunderClan, and Crowfeather, warrior of WindClan, are Lionblaze, Hollyleaf, and Jayfeather's real parents. Not Brambleclaw and Squirrelflight.
I'm not sure why she told the clans but i think it's because she hates leafpool.
Firestar CinderPaw-Yes because in sunset he explains it to the three.No that's is totally wrong. Jayfeather has a dream in Sunrise, when Yellowfang comes and drops a crow's feather into his nest. Then they go and tell Crowfeather, and he denies it. But still the fact remains.
Crowfeather saved Leafpool from falling in the book "Sunset" (Warriors: The New Prophecy, Book 6) when they were on a mission to find Midnight the badger in the mountains. Leafpool slipped on some wet rocks while they were crossing a river, and Crowfeather caught her before she fell into the water.