Gav Thrope
Path of the Seer
Path of the Eldar (series) part 2

Thirianna abandons her simple existence to embark upon the mysterious Path of the Seer. She will tread a dark and dangerous road that leads her to the other realm of the warp ...
Warhammer 40k
novel

Also in:
Alien Invasion: the Xenos Digital Collection
Path of the Eldar
The Eldar
Paths of the Eldar