Retracing

Tom walked backwards, retracing his steps.

I reach the ramparts and the shadowy gates / whence first I issued, backward through the night / my studied steps retracing. Horror waits / around; the very silence breeds affright.

Felix traced retracing his steps, but he soon got lost.

Did you try retracing your steps?

I find myself retracing our conversations for clues he might have slipped.