Too late
The last pages of Albus Dumbledore's Diary
February 2nd
Azkaban's wards were shattered today. The walls were breached and Dementors and half-crazed prisoners have made it from the island to the mainland. The Aurors are already stretched too thin. Nobody can protect the Muggles from these horrors. I have little strength left, and Remus has to run the order meetings for me most times.
I hope Harry comes back.
February 5th
Voldemort just issued a demand for Harry Potter. He promises one million galleons and whatever their heart desires to whoever divulges the location of The-Boy-Who-Lived. He is also offering smaller awards for any information regarding where he might be hiding. I wish I knew.
Februrary 9th
The sun never rose today. I believe this to be a very ill omen.
February 11th
I have lost all contact with Durmstrang. HARRY! WHERE ARE YOU?
February 14th
I received the heart of Cornelius Fudge by owl today. Happy Valentine's day to you too Tom.
February 15th
Voldemort attacked Fudge's funeral. Hagrid and Remus fell in that bloody battle, amongst countless others.
February 18th
Beauxbatons was demolished by giants today. I haven't seen the sun in nine days. I fear I never will again. Alas, Mad-eye and Kingsley Shacklebolt died this day.
February 19th
The ministry is gone. I made the order for everyone to retreat to Hogwarts today.
February 21st
They destroyed The Burrow and Grimmauld place. All the Weasleys are dead, as well as Tonks, Arabella, and Mundungus. God help us all!
Februrary 22nd
They took St. Mungo's. Severus is talking about a suicide mission. I'm thinking about letting him.
Februrary 23rd
They took Hogsmeade. We are using every ounce of magical power to reinforce the wards on the school. I hope we make it.
February 25th
Severus went on his mission with Minerva. I hear they did some astounding things with levitation charms and trees. I miss them both dearly.
February 26th
The wards aren't going to hold. I can see giants in the distance.
Feb. 28th
The school's gone. I 'm in the forest. The centaurs all left.
March 5th (I think)
There is nothing but darkness. Sounds of pain, torture and other atrocities fill the black lightless void. The only flashes of light are twisted, evil, green bolts of light that extinguish the life of whomever they touch. People everywhere are helpless as the minions of Voldemort murder frivolously.
All hope seems to be dead. Even the great and mighty What's-his-face couldn't do anything now. What was his name? The name of the cowardly hero who abandoned the world when needed most?
Oh… right. His name was Harry Potter. Why did he leave? Where did he go? Will he ever come back? Even if he did, could he even make a difference?
What does it matter, he's not coming back anyway. Traitorous cur. My time here is not long. My old eyes are failing me, and the werewolves are getting closer. I think my leg is broken. I know my wand is. I'm running out of ink. My only hope is someone finds me and I can get help… Nevermind.
Damn you Harry Potter. Bastard.
Nothing more was written.