Jameson's partner, Detective Rodriguez, walked into the room. "Anything new on the case?" she asked.
The second serial, "wwWW-67890", decoded to: "BE-CAREFUL-THE-KEY-IS-HIDDEN". Serial Ws All Serials Keys
After some trial and error, they discovered that the Ws corresponded to letters in the alphabet. W = 23, w = 22, WW = 44, etc. Using this substitution cipher, they decoded the serial numbers. Jameson's partner, Detective Rodriguez, walked into the room
Inside the compartment was a note with a single sentence: "The real key is the connection between the serials". w = 22
"Look for the Serial Ws. All serials hold keys."