ObjectsArtifact
Sword of Gryffindor
The Sword of Gryffindor is a goblin-made blade that presents itself to a worthy Gryffindor. The Sorting Hat drops it to Harry in the Chamber, and it takes in Basilisk venom, which lets it destroy Horcruxes. Snape later sends a doe Patronus to lead Harry to the sword under the ice in the Forest of Dean.
First mention
Harry Potter and the Chamber of SecretsChapter: The Chamber of Secrets
The Sorting Hat gives Harry the sword when he is shut in the Chamber with Tom Riddle’s memory and the Basilisk.