They have been washed and bleached, starched and stretched hundreds of times, yet there's not a weak thread among them.
That is, presented with the quilt of guilt woven by the prosecution, they always pointed to a weak thread, a piece of evidence that, for one reason or another, proved to be less than conclusive.
Life was such a weak thread.
I found there was no telegraph service at all to this place; I found there was only one weak thread of train-service.
An occasional snake in our nets provided a special feast, although it destroyed the weak threads.
A few words from you, the casual mention of some tiny detail you don't even know you know, could be the thing we need to cut the last weak threads of suspicion tying you and Lady Welton to this case.
Some very weak threads to follow.
Yet even the most subtle spiders may leave a weak thread.
By the reign of Alfonso III Vikings were stifling the already weak threads of sea communications that tied Galicia to the rest of Europe.
This gives her remarkable insight into what people are thinking, as well as the ability to know what well-chosen words will break weak threads.