End of the Line

There was no description to this, just a wav file. Listening to the wav file made clear that it was Morse code, which I first transcribed by hand and then confirmed with a wav to Morse website converter.

… -.- .-.- — .-. –.- - .. .-.- -. ..- -.. -. .– .-. …- -… …

Translating the Morse didn’t reveal anything, but as suggested by the title of the challenge, reversing the order did.

… …- -… .-. –. .- ..- -.. .- -.-. .. - -.– .-. — -.-. -.- …

Based on the flag, you were supposed to use Audacity, but I just manually typed the Morse backwards. Translating the ‘backwards’ Morse did reveal the flag.