tom's alleged mother, sophia, appears on the premises and helps claire escape her locked bedroom. she tells claire how klein and utterson had tried to clone doctor jekyll but had been unsuccessful. claire meets several of the failed attempts in the basement of the building. they are disfigured and in a near-vegetative state. sophia explains that tom is a descendant of doctor jekyll, through mr hyde, and by chance "a perfect throwback, a chance in a million". klein and utterson had discovered this and had watched him from when he was six-months-old. in order to trigger his transformation into hyde, they created a clone of alice, the maid whom jekyll had loved. this clone is claire herself.