The Harry Potter Compendium
The Harry Potter Compendium
Porticus Periculum
Location information

Hogwarts Castle, Scotland, Great Britain

Permanent residents

Hogwarts School

The Porticus Periculum is a hall at Hogwarts Castle.

Behind the scenes

  • This hall can only be seen on the Marauder's Map replica on display at The Wizarding World of Harry Potter.
  • A "Porticus" is an entrance-porch of a church. "Periculum" is a Latin noun meaning "danger" and is also the name of a spell to conjure red sparks.
  • This may be a variant of the Siege Perilous of Arthurian legend, or the comic book "reinterpretation" of that concept.


Hogwarts Castle
Locations below ground floor

Boathouse · Boathouse passageway · Chamber of Secrets · Dark Hall · Deathday Party Hall · Detention escape route · Dungeons · Dungeon cave · Dungeon Corridor · Dungeon Five · Dungeon hall · Dungeon Pit · Dungeon Staircase · Entrance Dungeon · Forgotten Cavern · Hieroglyphic Hall · Hogwarts Basement · Hufflepuff Basement · Kitchens · Lever Rooms · Lost Tunnel · Lower Chambers Corridor North-East · Lower Chambers Corridor West · Lower Chambers Portrait Corridor · Poltergeist Passage · Porticus Circumscriptus · Porticus Periculum · Porticus Imago · Porticus Medius · Porticus Olidus · Potion-Mixing Room · Potions basement · Potions Classroom · Prowling Passage · Quidditch cave · Room of Doom · Room of Runes · Severus Snape's office · Shop · Slug Pit · Slughorn's Stairs · Slytherin Boys' Dormitory · Slytherin Duelling Dungeon · Slytherin Dungeon · Slytherin Girls' Dormitory · Undercover route to the Kitchens · Underground Chambers · Vestibule of Mischief · Way to Courtyard

Portraits, statues and other artwork located below ground floor

Basil Fronsac · Bloody Baron · Cecilia Gallerani · Elizabeth Burke · Hooky · Mad old man · Mopsus · Old man · Percival Pratt · Salazar Slytherin · Sleeping hermit · Bearded man with book