Found: Merlin's Heir: 1

Mysterious Shadows. Arthurian legend. Dangerous magic.

Ten years after her father's disappearance, Merle Wilde has lost hope she’ll ever find answers. Her Mum is convinced he was taken by the Shadows she sees, and that they're coming back for Merle. In a last ditch attempt to save herself, Merle makes a blood wish. Will she find the answers she seeks?

The Knights Templar faces extinction. For hundreds of years the knights have protected the true heirs to Camelot from evil, but faery Queen Morgwese is determined to claim the throne for herself . As her power threatens to overwhelm them, the knights must start the search for Merlin’s Heir, the only sorcerer who can banish her for good.

When the mysterious Ren enters Merle's life, claiming she’s the lost heir of the great wizard Merlin, and that the Shadows are not what they seem, Merle is catapulted into a world of magic, adventure, and legend. Tasked with protecting the Pendragon's and with time running out, Merle must convince the Knights of the Round Table that she can claim Merlin's magic and defeat Morgwese, before the fae bring ruin to them all.