Forbidden Forest Acromantula colony

"I have lived here in the forest ever since, where Hagrid still visits me. He even found me a wife, Mosag, and you see how our family has grown, all through Hagrid's goodness..."

- Aragog

A colony of Acromantulas was established deep in the Forbidden Forest by Rubeus Hagrid, at Hogwarts School of Witchcraft and Wizardry in 1943.

Establishment of the colony
The colony was established in 1943, when a young Rubeus Hagrid, a third year student at Hogwarts School of Witchcraft and Wizardry, acquired the egg of an Acromantula from a traveller. He raised the creature in secret, naming it Aragog, feeding it on leftovers. However, during the same year, Tom Marvolo Riddle learned how to open the Chamber of Secrets, and released the Basilisk. Riddle, finding out about Hagrid and the Acromantula, diverted attention away from himself by blaming the attacks on the spider. Hagrid was expelled, but managed to release Aragog into the Forbidden Forest.

Dealings with Hagrid
Aragog lived in the Forbidden Forest, and Hagrid helped him as much as possible. He acquired another Acromantula, a female named Mosag, as a mate for Aragog and the two Acromantulas bred. The growing number of spiders built a huge dome web in the forest. Hagrid occasionally visited them, and Aragog, grateful for Hagrid's assistance, commanded his children not to attack and eat him.

The re-opening of the Chamber of Secrets
"Aragog, a human has arrived"

- One of the acromantulas

In 1993, Harry Potter was directed to the Acromantula colony by Hagrid to learn about what had transpired fifty years previously. The Chamber of Secrets had been reopened, and Hagrid was unable to tell them of the events leading up to his expulsion since he was placed under arrest and sent to Azkaban as a prime suspect. Hagrid told Harry and Ron Weasley to "follow the spiders". The pair did, and Aragog relayed the tale of his birth and what transpired in 1943. However, his orders to his children not to attack Hagrid did not extend to Hagrid's friends. He allowed his children to attack the pair, but the two students were saved by a feral flying car.

Death of Aragog
"May your many-eyed descendents ever flourish and your human friends find solace for the loss they have sustained."

- Horace Slughorn

In 1997, Aragog became ill and eventually died. The colony, as was their way, intended to devour the corpse. Hagrid, wanting to give him a decent burial, dragged the corpse through the Forest and buried it outside his hut in a small service attended by Professor Horace Slughorn (who used the opportunity to procure some Acromantula venom), and Harry Potter. With Aragog's demise, the colony no longer followed his orders of not to harm Hagrid, much to Hagrid's dismay.

The Battle of Hogwarts
During the Battle of Hogwarts in 1998, the Acromantulas were driven out of their nest by Death Eaters, who used the nest as a base of operations. The Acromantulas attacked the school, scaling the walls of the castle and attacking both the defenders of Hogwarts and Death Eaters alike. One of them was killed by Aberforth Dumbledore and another was possibly killed in an explosion.

Near the climax of the battle, the nest was the location of Harry Potter's stand against Lord Voldemort, when he fully intended to sacrifice himself in order to defeat the Dark Lord. Harry also dropped a Deathly Hallow, the Resurrection Stone near here on his way to turn himself over to Lord Voldemort.

Appearances

 * Harry Potter and the Chamber of Secrets
 * Harry Potter and the Chamber of Secrets (film)
 * Harry Potter and the Chamber of Secrets (video game)
 * Harry Potter and the Half-Blood Prince
 * Harry Potter and the Deathly Hallows
 * Harry Potter and the Deathly Hallows: Part 2
 * Harry Potter and the Deathly Hallows: Part 2 (video game)
 * LEGO Harry Potter: Building the Magical World
 * LEGO Harry Potter: Characters of the Magical World
 * LEGO Harry Potter: Years 1-4
 * LEGO Harry Potter: Years 5-7
 * Harry Potter LEGO Sets
 * Pottermore