American native Homer Jackson is no longer bound by the need to evade the authorities in his homeland. Despite his newfound freedom he cannot bear to leave the Whitechapel streets that he now considers his true home. When his marriage to Long Susan collapsed, Jackson reverted to the man Reid plucked out of the Tenter Street brothel: a two-penny sawbones, a snake-oil pushing clap-doctor. Not that this situation currently riles him — he has all the time in the world to indulge his desires. But Drake and Reid require his unique skill set once again and he is unwillingly pulled back into the lures of 'H' Division.