The Keyholder of Time by Charity F Nelson

Death and Time are ancient brothers. Time is nothing without Death, and Death is nothing without Time.

Eighteen-year-old Malina Allaway swore off marriage when she became her family’s only hope for survival after her father was injured during the Clan Wars. She spends her days tending to the family farm while, during the nights, she visits those who call on her for aid in the only way she can, with a rare gift that allows her to step into another’s memories, triggered by music.
Some say it’s a gift from the gods. Others claim it’s a curse. She doesn’t know what to believe.
So, when a pretentious and annoyingly beautiful man coaxes her into a dance, she doesn’t realize it was all an act to discover who she really is. The steward of the Tempus Guild appears at her door the following day to declare her ascension as the newest Keyholder, and she’s to marry the eldest son of the Blacklock clan. Immediately.
At risk of the family she fought so hard to care for become destitute upon her refusal, she’s forced to leave the Lowlands and is swept away into the distinguished territory of the Highlands, where she finds more than she bargains for. Death and darkness await her at every turn while rumors of the risen Harbinger spread. She’s torn between escaping her new life and the growing desires in her heart for not just one but two mysterious men, but she just might break from the pressure of the rising forces set against her before she has a chance to declare her true feelings.