Trionite House, Castlefield St, Stoke-on-Trent ST4 7AQ ()
Description:Nobody likes a Grass! But if you want your freedom, you will have to search the solitary cell, solve all the clues and then find and re-assemble the mobile phone.
Once you have done this, the prison warden, known only as "the screw" will set you free. Be warned though, if any of the phone is still missing, you'll be locked back into your cell!