"Will he take up her quarrel ?" "If she can make him believe that Robin had the secret of the lost treasure, and that thou didst force the secret from him ere thou laidest him in his grave, he will take up the quarrel in right good earnest, and rest not till he has learned where the treasure has been hid.

We of the gipsy tribe have as little believed in that hid treasure as the house of Trevlyn, hence its safety all these years.
But let Miriam once tell what she knows--which is something, I warrant--and there may be many who will then believe that the secret was in Robin's keeping.

They will be certain sure that thou wouldst not have killed the man until thou hadst made sure of the treasure.

It would be acting like the fabled yokel who killed the goose that laid the golden eggs.

Wherefore be gone.