I used to live near Daventry, it's a small town so don't raise your hopes. Sexybum seems to be the only legit escort. Never seen her (something to do with AW feedback).
I have seen a few randoms pop up and now and again, I had my second ever punt in Daventry with a fit looking 40 something blonde who disappeared, can't find her profile but she used to do two girls with peachy pippa (if anyone knows, her name was Tiffany). Other than that there was Sienna who isn't active as she was pregnant last time I looked at her.
Better off looking at Northampton or Coventry. Even Leicester is only a 45 minute drive up the M1, or Milton Keynes down the A5. If you don't drive, stick to Northampton.