A Vow of Blood and Sap: An Enchanting Romantasy (Whispers of the Flora) by Haley Gallant

A kingdom's ruin. A mercenary's redemption. A princess's relentless pursuit of truth. Princess Valia's world is shattered when her mother and sisters are killed, and she is abducted and held under a sinister illusion. Rescued by a strange mercenary who breaks the illusion with a kiss, she returns home to the capital city of Wyra. As Valia attempts to unravel the mystery of her family's attack with her magical connection to the Flora, she begins to suspect that not everything is as it seems. A confrontation with her father raises more questions than it answers, so she defies his orders and embarks on a perilous journey to find the truth for herself. Still haunted by the kiss that broke her illusion, she enlists the aid of the mercenary man. Together, Valia and the mercenary must face horrifying creatures, treacherous men, and a growing bond neither of them expected. As secrets come to light, she must decide who to trust: the kingdom that raised her, or the enigmatic mercenary who saved her life. Read more