Aloysius Pendergast Series by Douglas Preston, Lincoln Child

Agent Pendergast faces his latest challenge in this next installment of the #1 NYT bestselling series by acclaimed authors Preston and Child, the second in the Leng Trilogy.Following the events of Bloodless, FBI Special Agent A.X.L. Pendergast and Constance Greene return. Against all odds, Constance has found a way back to the place of her origins, New York City in the late 1800s... moreAgent Pendergast faces his latest challenge in this next installment of the #1 NYT bestselling series by acclaimed authors Preston and Child, the second in the Leng Trilogy.Following the events of Bloodless, FBI Special Agent A.X.L. Pendergast and Constance Greene return. Against all odds, Constance has found a way back to the place of her origins, New York City in the late 1800s. She sets off on a quest to prevent the events that lead to the deaths of her sister and brother, and stop Manhattan's most infamous serial killer, Dr. Enoch Leng, before his nefarious experiments come to fruition.Meanwhile, in present-day New York, Agent Pendergast is desperate to find a way to reunite with Constance – but will he find a way before it's too late? less

Preston & Child continue their #1 bestselling series featuring FBI Special Agent Pendergast and Constance Greene, as they take a final stand against New York’s deadliest serial Pendergast’s own ancestor…and Constance’s greatest enemy.  A desperate bargain is broken… Constance Greene confronts Manhattan’s most dangerous serial killer, Enoch Leng, bartering for her sister's life – but she is betrayed and turned away empty-handed, incandescent with rage... morePreston & Child continue their #1 bestselling series featuring FBI Special Agent Pendergast and Constance Greene, as they take a final stand against New York’s deadliest serial Pendergast’s own ancestor…and Constance’s greatest enemy.  A desperate bargain is broken… Constance Greene confronts Manhattan’s most dangerous serial killer, Enoch Leng, bartering for her sister's life – but she is betrayed and turned away empty-handed, incandescent with rage.  A clever trap is set… Unknown to Leng, Pendergast’s brother, Diogenes, appears unexpectedly, offering to help—for mysterious reasons of his own. Disguised as a cleric, Diogenes establishes himself in New York's notorious Five Points slum, manipulating events like a chess master, watching Leng’s every move…and awaiting his own chance to strike.  A vengeful angel will not be deterred… Meanwhile, as Pendergast focuses on saving the unstable Constance in her fanatical quest for vengeance, she strikes out on her to rescue her beloved siblings from a tragic fate and take savage retribution on Leng. But Leng is one step ahead and has a surprise for them all… less