Kissed by Eternity (Immortal Blood Book 1) by Stella Wilkinson

Protect the Grail, battle the hunters, don't fall for the immortal bad boy - he bites!When Immortal Guardian, Lachlan, is tasked with moving the Holy Grail, he needs a the help of a witch to cloak its power. Unfortunately, the only one available is Ivy - feisty, untrained, and descended from the woman who broke his heart.Pursued across Britain, from the magic of Glastonbury to the mists of the Highlands, they must evade Grail seekers and vampire hunters alike while guarding the ultimate relic.As danger closes in, Ivy is forced to tap into the deeper magic of her blood. Slipping through time, she connects with her ancestors and uncovers the truth behind the power that binds her to Lachlan.Paranormal romance with a touch of romantasy, time travel and ancient relics. Perfect for fans of Deborah Harkness and Elizabeth Hunter.