The Undertaken Series 1-2 Ari Berk epub

Death Watch (Book 1)
They say the dead should rest in peace. Not all the dead agree.One night, Silas Umber's father Amos doesn’t come home from work. Devastated, Silas learns that his father was no mere mortician but an Undertaker, charged with bringing The Peace to the dead trapped in the Shadowlands, the states of limbo binding spirits to earth. With Amos gone, Silas and his mother have no choice but to return to Lichport, the crumbling seaside town where Silas was born, and move in with Amos’s brother, Charles.
Even as Silas eagerly explores his father’s town and its many abandoned streets and overgrown cemeteries, he grows increasingly wary of his uncle. There is something not quite right going on in Charles Umber’s ornate, museum-like house—something, Silas is sure, that is connected to his father’s disappearance. When Silas’s search leads him to his father’s old office, he comes across a powerful artifact: the Death Watch, a four hundred year old Hadean clock that allows the owner to see the dead.
Death Watch in hand, Silas begins to unearth Lichport’s secret history—and discovers that he has taken on his father’s mantle as Lichport’s Undertaker. Now, Silas must embark on a dangerous path into the Shadowlands to embrace his destiny and discover the truth about his father—no matter the cost.

Mistle Child (Book 2)
In life, in death: family remains. Silas Umber has finally come into his own as the Undertaker of Lichport when a mysterious invitation calls him beyond the marshes to Arvale, the ancestral manor of the Umbers. There, his extended family endures, waiting for a living Undertaker to return and preside over the Door Doom, an archaic rite that grants a terrible power to summon and bind the dead in judgment.
As Silas assumes the mantle of Janus, the Watcher at the Threshold, deep below the earth in the catacombs and sunken towers, grim spirits grow restless at his arrival—hungry for freedom and eager for vengeance against a family with a long history of harsh judgments. Now, Silas must right an ancient wrong and accept that even a house of ghosts can be haunted by its past—for in matters of family, we are who we were.