FEDERAL BUREAU OF INVESTIGATIONCASE FILE X-88100-ω — STATIC
88.1 MHz.
Broadcasting: nothing, continuously, since 1994
TRANSCRIPT
kkkkshhhhh ... the moose ... kkkshhh ... the kettle is on ... shhhhhh ... seventeen ... kshh ... turn left at the other left ... shhhhh
ANALYSIS
Our best analysts agree that this is a sound. Further analysis was postponed due to lunch.
FREQUENCY
88.1 · 88.2 · 88.1 · 88.3 · (88.1 again, but louder)
INTERCEPTED — UNIDENTIFIED CIPHER
Between the static, one burst came through clean. Grouped in fives, as the old operators did:
FVSVS AFMGY ESSCM EQODP QRUWX FVSJI WBCUO ABWL
A note was scribbled beside it, in a hand that looked suspiciously like Mulder's:
"A Frenchman's cipher, not Caesar's. The key walks on four legs and is out there."