Peter Pettigrew, Secret Keeper

[Timothy Bruening]

Peter Pettigrew was Secret Keeper for the Potter family. No one he didn't tell about the Potters' location would be able to find him.

Peter then blabbed to Lord Voldemort, who proceeded to invade the Potter residence and kill James and Lilly, and then get blasted trying to kill Harry. After that, the ruins of the Potter house were visible to any wizard of witch. But since the Secret Keeper Peter was still alive, how could anyone he didn't tell find the Potter home?

[t***@gmail.com]

When Sirius Black learned that Voldemort had attacked the Potter family, why didn't he immediately send an owl to Dumbledore saying "At my suggestion, James made Peter Pettigrew their Secret Keeper. I therefore suspect that Peter must have betrayed the Potters to He Who Must Not Be Named. I am going after him now."?

[Timothy Bruening]

Since Hagrid didn't know that Peter was the Secret Keeper, I assume that Peter didn't tell Hagrid where the Potters were. Therefore, before Voldy's attack, Hagrid should not have been able to find the Potters.

After Voldy's attack, Peter was still alive, so the Fidilius Charm he was Secret Keeper of should still have been in effect. So Harry should still have been Unfindable by anyone not in on the Secret. So how did Hagrid find Harry after the attack?