The Handbook of Field Operatives

Lady Rowellanuraven, Coordinator of the Celestial Intervention Agency, wrote the 943rd edition of The Handbook of Field Operatives. It included a section on how and when CIA agents should try to apprehend the Master, with recommended great caution but also emphasised that the Master was ultimately fallible and not a major threat to Gallifrey. (PROSE: CIA File Extracts)