Collects Proof #18-23
From the publisher:
It's murder, heartbreak, and Bigfoot steampunk-action in the book NPR calls "the most memorable series of the year!" 150 years ago, Proof was a Victorian circus star while the serial killer Springheel Jack was stalking London's back alleys. When Proof and Jack both set their sights on the same woman, she doesn't stand a chance!