monstrous, too impossible. It must be Alfred Inglethorp.”
Poirot shook his head gravely.
“Don’t ask me about it,” continued Miss Howard, “because I shan’t tell you. I won’t admit it, even to myself. I must be mad to think of such a thing.”
Poirot nodded, as if satisfied.
“I will ask you nothing. It is enough for me that it is as I thought. And I—I, too, have an instinct. We are working together towards a common end.”
“Don’t ask me to help you, because I won’t. I wouldn’t lift a finger to—to–-” She faltered.
The weather had been perfectly fine for some days, and no ordinary boots would have left such a heavy deposit.
“I strolled to the window, and saw at once that the begonia beds had been newly planted. The mould in the beds was exactly similar to that on the floor of the boudoir, and also I learnt from