If the tunnels under Fort Bilston are really abandoned, why can you hear a weird electrical throb? #MattAdams, 1981 https://t.co/3PbJ5fYZaB
If the tunnels under Fort Bilston are really abandoned, why can you hear a weird electrical throb? #MattAdams, 1981 pic.twitter.com/3PbJ5fYZaB
— Hookland (@HooklandGuide) July 5, 2018