Bank Foreclosed Auction- original grantor deceased and property transferred to children. Is it safe to buy this property at an auction?

[John Rovin]

Hi Folks,

I am studying a title where 

ABC Husband and XYZ wife signed a Deed of Trust to a Bank

After few years husband died, without writing any will.

They created affidavit of heirship for Children, and wife XYZ created Special warranty deed for their three Children and transferred the property.

Now property went in default and bank is foreclosing the deed of trust signed by ABC and XYZ.

So now the owners are the children, If I buy at foreclosure auction at county then what happens?

Thanks in advance,

John