Liar's legacy / Taylor Stevens.

Enhanced descriptions from Syndetics:

The Broker is dead. The secret network he controlled has lost its restraints. From the darkest deep state enclave to the farthest reaches of the planet, the world's deadliest assassins are now free to pursue their own agendas. The United States government, unwilling to risk upheaval and global chaos, has preemptively mobilized killers of its own to hunt down and terminate each threat.

Among the most dangerous agents of death are Jack and Jill. Often estranged-always connected by their stark shared childhood-brother and sister have managed to elude both U.S. intelligence and their foreign enemies, which makes them the perfect instruments of destruction for anyone who can control them.

As the siblings board a plane to Berlin hoping to meet their father for the first time, they suspect a trap. What they can't predict is how far a high-level Russian operation will go to secure their skills, or how hard the U.S. killers sent to stop them will fight to assassinate them first. For the twins, resistance and cooperation both mean certain death.

Caught between two superpowers with unlimited resources and unable to trust each other, brother and sister will match wit against skill in a life-threatening chase across Europe, to the United States, and into an unholy alliance that could change the balance of global power forever.

Filled with pulse-pounding tension, blistering action, and intense human drama, Liars' Legacy is world-class intrigue at its best.

Reviews provided by Syndetics

Publishers Weekly Review

Bestseller Stevens's taut and twisty sequel to 2018's Liars' Paradox, which introduced sibling assassins Jack and Jill, blends cutting-edge surveillance technology with traditional spycraft. The immersive, globe-trotting narrative opens with rival kill teams from the U.S. and Russia stalking enigmatic operative Christopher Holden, who's flying from Dallas to Frankfurt, Germany. The alternating points of view require attentive reading as the characters often switch their names, nationalities, and allegiances. Midway, the numerous double-crosses and master disguises grow a bit tedious. Stevens wisely chooses to unite Jack and Jill with Holden, who yearns for a closer relationship with them for unclear reasons. Holden, who trades in information, promises to help the twins identify their absent father and determine whether their mother, Clare, faked her death months earlier. All roads lead back to a political assassination plot and an open-ended climax, setting the groundwork for a third outing. Jason Bourne aficionados will find much to like, and those familiar with the events in Liars' Paradox will have a distinct advantage over newcomers. Agent: Anne Hawkins, John Hawkins & Assoc. (Jan.)

Booklist Review

Even Jack and Jill didn't know their own real names until adulthood. The twins are assassins who are both on the hunt and on the run in Stevens' second propulsive novel featuring the duo, after Liar's Paradox (2018). The two were raised in harrowing circumstances; their mother kept them on the run from whom, they had no idea and trained them in self-defense, including the use of deadly force. (Shooting Jack more than once was just one technique.) Now the twins seek the father they've never met, knowing that a supposed meeting might be a trap, while avoiding a worldwide hunt for assassins such as themselves, who are surplus to requirements since the demise of a mastermind called the Broker. This might sound confusing, and it can be; readers of the previous novel are likely the ideal audience for this work, though the back-of-the-book blurb offers a helpful overview for newbies. Those willing to weather the intricacies of Stevens' plotting will be rewarded with an exciting thriller with sympathetic, well-drawn characters. Hand this one to Lee Child fans.--Henrietta Verma Copyright 2020 Booklist