Sunlight washed down over the lakeside, glittering on the gentle water and warming the pelts of Lionblaze and Jayfeather. The two brothers were out hunting. Birdsong filled the air, promising plentiful prey. Soft white clouds scudded by overhead; everything was typical and quiet.

Little did the two ThunderClan cats know, today would bring possibly the strangest, most shocking discovery ever to befall the Clans.

"Hey, Jayfeather, what's that?" Lionblaze stopped walking. Something had caught his eye.

"What's what?" the blind medicine cat asked, coming to stand beside his littermate.

Lionblaze padded up to the edge of the lake. There was something lodged in the mud; he reached over carefully and tugged it free, then dropped the mysterious item onto the peaty grass.

Lionblaze wiped some of the mud off with a paw. Sloppily etched handwriting began to come into view. "It's some sort of book," he announced.

Then he froze, his fur bristling in shock. On the torn, filthy, crudely-bound cover were two simple words that nearly made Lionblaze's heart stop.

"Tigerstar's Diary."