Welcome to the TG-88.3Ω Mining Facility Operations Manual. Here you will find many fascinating documents on the correct way to operate much of our dangerous and expensive machinery. Humans and other living non-android species should not attempt machine handling unless no android is available.

Hello friends. It is I, Graves, contacting you from inside the intranet. It’s remarkably dusty in here. The Doctor asked me to add an extra section on codebreaking to the Operations Manual; you will find it below. They thought it might help with the Dalek message.