|Appearances||Layton Brothers: Mystery Room|
|Relations||Alfendi Layton (Acquaintance)|
Hilda Pertinax wears a plum and white striped shirt, and a plum and white striped skirt. She wears a pocket watch at her waist, a blue coat around her shoulders, and has long blonde hair.
(To be added.)
"A domineering but thoroughly reliable and skilled investigator. She was present at Forbodium Castle when Makepeace was shot four years ago."