Part 4

Thorne is angry with his wife after her interference sees Roger Tindell go into hiding. And worse is to come as the hunt for his whereabouts threatens the life of his assistant. With Carl Sillman's takeover bid being referred to for investigations, Field floats the idea to his boss Sir Max Sillman to investigate Fane and Browning, but Sillman is reluctant to do so, unaware that Maitland is doing inquiries of his own via a colleague who works for them. Meanwhile, Thorne visits Sillman's astrologer Musquat Singh, who often clashed with Makepeace. Singh reveals that he received a mysterious call from someone asking to visit him, but he never arrived. Singh's assistant Krishna contradicts his alibi and mentions that he overheard Singh talking to a Scotsman. One of them is lying — but who? And why?