Gear Hearts - World Clock Journals, #2

Time can't heal these wounds. At least, not with a broken time machine ripping them open again and again, every hour on the hour.  Pearl Shelley thought that leaving the Clockwork Apothecary to help Dr. McCaffrey at the Post Boston Infirmary would take her mind off Dorian and the future she can never have with him. But when she discovers a sinister plot to salvage the malfunctioning time machine, Pearl knows she must brave the heartache of Late Boston once again.
Though she will need help... The last thing Captain Leopold Le Guin remembers is the pomp and circumstance leading up to his wedding-right before the earth split open and the world went black. After waking to discover that he's been in a coma for the past three months and everyone in the city is in mortal peril-including his new wife-he accepts Miss Shelley's plea for assistance and escapes the infirmary, oblivious to the new and terrible world of Late Boston waiting for him.