Margaret is a secretary at Alternative High School.
The Senior Year Adventures[]
The Chalice of the Gods[]
When Percy Jackson comes in late on day, she is one the phone with his father who explains why he is late. They two then talk as Percy heads to class.
Wrath of the Triple Goddess[]
When Percy gets to the reception desk after being summoned to the office, Margaret is standing there frozen, staring at nothing. Margaret tells Percy that "they are waiting," and points to Dr. Samuels office, causing Percy to realize that something is wrong since the secretary is entranced.
| The Senior Year Adventures | |
| Books: | The Chalice of the Gods | Wrath of the Triple Goddess |
| Main Characters: | Percy Jackson | Annabeth Chase | Grover Underwood |
| Secondary Characters: | Sally Jackson | Paul Blofis | Eudora | Hecuba | Gale | Nope |
| Minor Characters: | Naomi | Barbara | Elevator Security Guard | Blanche | Lucius | Margaret | Sparky | Li'l Killer | Mrs. Foray | Dr. Samuels | Dr. Sharma | Peter Stuyvesant | Mrs. O'Leary | Chiron | Connor Stoll | Clovis | Harley | Valentina Diaz | Juniper |
| Gods: | Ganymede | Iris | Hebe | Elisson | Poseidon | Zeus | Demeter | Hera | Hermes | Athena | Geras |
| Titans: | Rhea | Kronos | Hecate |
| Mythical Creatures: | Nereid | Nymph | Horned Serpent | Hellhound |
| Related Content: | Rick Riordan | Percy Jackson and the Olympians |