Caithness, Lines 26b-30aPerformance VideosAct 5,Scene 2Lines 26b-30aCaithness performs a speech from Act 5, Scene 2 of myShakespeare's Macbeth. Video of myShakespeare | Macbeth 5.2 Performance: Caithness, Lines 26b-30a Caithness Well, march we on To give obedience where 'tis truly owed. Meet we the medicine of the sickly weal, And with him, pour we in our country's purge, Each drop of us.