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Filch_secrecy_sensor_HBP_concept_01.jpg (614 × 427 pixels, file size: 40 KB, MIME type: image/jpeg)
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Argus Filch was a Squib and the caretaker of Hogwarts School of Witchcraft and Wizardry since...
A Secrecy Sensor is a type of Dark Detector. It is shaped like an aerial, but it is gold in...
Going to clean this page up later