The Inkwell of Shadows

Newlywed, but not newly-dead. At least, not yet…
  Daniel Hawthorne thought marrying his long-time fiancée, Cassidy—a shapeshifting bat-creature called a skinshaper—would be the hard part. Especially compared to quitting his workaholic job as a software engineer to run his late uncle’s antique shop in a quiet Southern town.
  Sadly, not so much.
  After a supernatural enemy crashes their wedding night with blood and fire, Daniel and Cassidy barely escape with their lives. The old storefront is smashed. Their honeymoon? Ruined. To rebuild, they’re forced to take a dubious job investigating a set of antique fountain pens. Ones with a long and deadly history in their wake.
  Now they find themselves caught up in a century-old problem steeped in ink and blood. At the same time, a mysterious figure is also looking for the pens—and is willing to kill anyone to get them. Worse? It all might have ties to the monster that nearly murdered them.
  To protect home, sanity, and each other, Daniel and Cassidy must uncover the truth—at least before their names are written in blood.