The book A Shadow of Time tells the story of a young woman who inherits a vast estate after her husband's death. Leanore, a dedicated mother to her daughter and a mentor to young Kellyn, plays a supporting role while facing her own struggles. Her husband has vanished, lost in realities that often merge or fade due to inconsistencies and unfulfilled potential. Despite this, Leanore refuses to give up on him, and her story demanded to be told.
Shadowlands by Louann Carroll, an Echoes of Tomorrow story. 

The knock on the door. The horrifying news - Jack is dead. 

When Leanore goes to identify her husband at the morgue, she is stunned to discover the body does not belong to Jack. At least not her Jack. 

Leanore uncovers clues pointing to a truth more staggering than death. Her real husband has slipped through the fabric of reality. Trapped in a parallel universe, he's calling out for her. 

Reality fractures as Leanore chases threads across universes, alternate realities, and whispers in the dark. 

Something ancient guards the doorway between worlds and it does not want her to find him. Every journey into another reality brings her closer to answers and closer to the entity guarding the doorways. 

To reunite with the man she thought she had lost forever, Leanore must walk the edge of madness and belief. But in the Shadowlands, the cost of love is far more than she bargained for. 

Shadowlands: Leanore's Story (Echoes of Tomorrow) eBook : Carroll, Louann: Amazon.ca: Books