Each expansion of Sector 7 was added above the last, wider and further from the ring, until the uppermost levels held administration, records, and personnel who had never been below Grade 3. Liminal calls the levels grades, and the building is read upward as a defence: each grade is one more layer built to stop anything below it from rising.
An operative climbing from the ring is moving through that defence from the wrong side. Threat pressure rises with the floor number for that reason. The operative is what the upper grades were hardened against.
Grades and clearance
Because a grade is a level of the building, Liminal's clearance is written as the grade an operative is cleared to go below. Operatives of the armed response file Clearance for each doctrine, and the end of a projection reports CLEARED TO GRADE 3 when it rises.
The top hatch
Ladders carry a projection between intermediate floors. Only the hatch at the top of the climb signs a projection off and returns the neural pattern to the Agency receiver. See Extraction.
See also
Records cited
- LP-MAN-1993-S7, Liminal and section 5
- The Critical Response lore manual, section 18