When she received an ancient watch from her enigmatic Aunt LaRue in honor of her thirteenth year, Emily hoped the heirloom might play a role in uncovering her very strange family history. Instead, her hopes were snatched away-along with the watch itself! -- by a sneaky beast with a secret link to Emily's bloodline. Now Emily's pursuit of the creature called El Viego has lured her deep into the mysterious halls of Blackrock, her awe-inspiring ancestral home. But if Emily can't beat El Viego at his twisted game of hide and seek, she might have more even more to lose than her connection to a lineage of legendary strangers!