If the auction date has passed you can count on the property having been sold....either to a new independent buyer or the lender that held the note. Generally, if the property is uncontested, the bank will purchase the property and then clear the title and sell it as a "foreclosure."
If you had interest in this home, all is not lost because it will likely resurface as a foreclosure. So it would be advisable to identify a realtor to monitor the market for you and inform you when it becomes available.
Hope this information is helpful.