The third book âJimmie Dale and the Phantom Clueâ in the Gray Seal series is quite fantastic! Jimmie Dale, alias The Gray Seal, alias Smarlinghue, the gentleman adventurer, is back on the scent with the King of crim and quarry. Over the head of the woman he loves hangs a menace from the gang, she and Jimmie have often thwarted, and through the previous volume saw the leader disposed of, and they free to marry and live their own lives. But Marie knows that there is still one, âThe Phantomâ, who menaces her. She again disappears to work out her own salvation... Jimmie too resumes his underworld work. A fast-paced, adventurous story riddled with aliases, disguises, gunfire and opium dens.