Deep Graves - Thornhill Vampire Chronicles, #2

At 391 years old, Gabriel Graves is no ordinary undertaker. His funeral enterprise, Deep Graves, is a revered institution, but underneath his success lies a tormenting regret.  Haunted by the tragic loss of his sister Elizabeth to the Black Death in 1665, Gabriel embarks on a perilous journey through time to rescue her from death's embrace. But time travel is a dangerous gamble, fraught with unpredictable consequences.  Landing in the plague-ridden London of the past, Gabriel faces a tremendous challenge: stripped of his vampiric powers, he must gain the favor of the undead twins, Isadore and Isadora, guardians of the immortal blood.
All while contending with the swirling rumors about his true nature, surprise visits from Octavia Thornhill, a fledgling who might hold a grudge against him, and Malm Westminster, a plague doctor with a terrible secret.  "Deep Graves" is the electrifying second volume in the Thornhill Vampire Chronicles, weaving a dark tale of love, loss and the bonds of blood and loyalty that bind across centuries.