Astrea is closer than ever to her destination of Illumia, but she's never felt further from what she wants. Can she make it out of the Mist in time, and what's waiting for her on the other side of the dragon range? Or underneath, for that matter... Marked is Part 4 of Running Toward Illumia and completes the first book in the series. Also available are: Banned, Part 1 of Running Toward Illumia Lost, Part 2 of Running Toward Illumia Drenched, Part 3 of Running Toward Illumia