Heroes spoiler alert: Hayden Panettiere was robbed.

Not on the show, and not in the sense of her deserving something not given to her - we mean literally. L.A. police are investigating a robbery at her house.

The grand theft - which was reported Monday - happened at the star's L.A. home, and "occurred between April 10 and 15 while she was out of town."

According to reports, the burglars made off with $15,000 worth of jewelry, but police only confirm that personal property was stolen from Hayden Panettiere.

While they could not disclose the monetary value of the goods, any report of grand theft (as opposed to petty theft) involves property valued at $400-plus.

Reports indicate that there were no signs of forced entry.

This news is even worse than Milo Ventimiglia's haircut. Other recent celebrity robbery victims include Amy Winehouse and Audrina Patridge.