Disclaimer: A lot of this story is my own work, though some of the plot (Thistleclaw being the only other cat for the deputy position, Oakheart and Bluestar's forbidden love, that kind of thing) are the property of the Erin Hunter's. Also, most of the characters, except for a select few, are Erin Hunter's. Any characters you don't recognise are mine.
Prologue
Sunstar looked at his deputy.
"Cavewing, you better not be lying," he meowed, and the black tom shook his head.
"I'm not. Stormtail is dead. Raggedpelt killed him."
Sunstar padded back and forth. "This can't be happening. Moonflower's kits!"
"Maybe if they..."
"No. I'm not going to threaten innocent kits because of something their father did."
"He was lucky Crookedpelt pushed him off that cliff. If he hadn't, I'd hate to know what Moonflower would do to him."
"Stonepelt won't be impressed."
"Does he have to know? We could say he died in a battle with RiverClan."
"Moonflower will tell him. She trusts him with her life. If it weren't for Stormtail..."
The two toms were interrupted by Sunstar's brother, Featherwhisker, ThunderClan's medicine cat, entered the den.
"Moonflower's kits are born," he mewed, and the cats bounded out of the den, and over to the nursery. They found the white she-cat with grey flecks licking two small she-cats, one was lighter, more like her mother. The second was a female version of her father, a blue-grey she-cat with a white muzzle.
"What are you calling them?" Cavewing asked, with a peak at Sunstar.
"Bluekit and Snowkit. Doesn't Bluekit look like Stormtail?" Moonflower mewed, looking up at Sunstar and Cavewing.
"Moonflower, there's something we have to tell you..." Sunstar left, as the two sat down. A few minutes later, Stonepelt, a young ThunderClan warrior with dark grey fur, padded into the camp, a vole in his jaws, and looking up at the moon, just as a she-cat's forlorn yowl filled the sky.