what appened at the marabar caves according to McBryde?

Aziz, Adela, and the guide climb up toward other caves higher in the hills. Aziz’s mind is preoccupied with breakfast preparations. Adela is also distracted, as she suddenly realizes that she and Ronny are not in love. Adela asks Aziz if he is married and if he has more than one wife. The second question shocks Aziz, and he ducks into a cave to recover. Adela follows shortly and enters another cave.