As the royal party approached Macbeth’s castle King Duncan paused to take account of the view.

“This castle has a most pleasant location, the country air is nimble and sweet. It recommends itself to our gentle senses.”

“Yes, indeed, Your Majesty.” said Banquo, “In summer the swallow can be found around our churches but here, on the warmth of heaven's breath, they nest. There's not a suitable site for nesting they've overlooked. I've noticed before that the most reliable breeding grounds of the swallow are filled with delicate air.”

The watch had alerted Lady Macbeth of the King's approach.

“Ah, look,” said King Duncan, “our honoured hostess awaits us. Our subjects' love is sometimes trouble but we always appreciate it. You take pains to make us welcome and we thank you for your trouble.”

“If all our service to you was twice done and then doubled then it would still be paltry compared to the honours Your Majesty has conferred on the House of Macbeth. We are your servants, Lord,” Lady Macbeth said meekly.

“Lady Macbeth, where is your husband, the Thane of Cawdor? We followed his path and hoped to get here before him. But he rides well and you, his great love, obviously inspired him to arrive before us. Fair and noble hostess, we are your guests tonight.”

“Your Majesty, everything that is ours is yours. Everything is for your pleasure.”

“Give me your hand, madam. Take me to my host. We love him greatly and shall continue to grace him.”

The King's obvious confidence and trust in Macbeth was yet more evidence to Lady Macbeth that together they could achieve their aim.