So two nights ago a circuit in my house stopped working - well, not quite. At least two receptacles on that same circuit are working but everything else isn't - both ceiling lights and receptacles. The breaker did not trip. It's not the circuit breaker itself (I tested the circuit with another breaker with the same result) and besides, if it was, nothing on that circuit would work, right? So I'm guessing that a mouse or something has interrupted the circuit somewhere. A couple of questions: if a mouse did chew through the wire why didn't this cause the breaker to trip? I checked, and the breaker didn't trip. Second, what's the best way for me to determine where the fault occurs? I'm dreading going up in the attic and hunting it down. I'd be very grateful for any help/advice/suggestions. Many thanks.