Rise of the Chosen by Anna Kopp.
OK, not really a zombie book. I can live with that! In Sam’s world when someone dies they either come back as a “woken” or “chosen”. The woken just want to kill, the chosen are strong and immortal. Sam is the daughter of a hero that defended people from the woken, Sam wants to follow in his footsteps and has trained at the watch’s school and is waiting for assignment. When a woken attacks her mother Sam kills it with her father’s sword, then the adventure, misdirection, and lies begin. Great book. Highly recommend it.— Della McNamara
In Sam's world there are two rules. Rule #1: Nobody dies. Protect the living at all costs. Rule #2: Everybody dies. At least once.
The Waking was a global event in which a force called the Lifeblood invaded all humans who died. The few strong enough to control it came back as powerful immortals. The rest letthe bloodlust take over and awoke with one goal - to kill.
Newly appointed Watch Guard Samantha Shields has a legacy to uphold. Her father died a hero defending their city and now she wants to follow in his footsteps. Except for the dying part, of course. Unfortunately, fate has other plans as she discovers deep dark secrets that make her choose between her loyalties and the lives of everyone in her city. Both rules are in play as Sam is forced to make hard decisions that could cost her everything - including the person she cares about most.