waited to hear no more, but tore up the village to find Poirot.

CHAPTER X. THE ARREST

To my extreme annoyance, Poirot was not in, and the old Belgian who
answered my knock informed me that he believed he had gone to London.

I was dumbfounded. What on earth could Poirot be doing in London! Was it
a sudden decision on his part, or had he already made up his mind when
he parted from me a few hours earlier?

I retraced my steps to Styles in some annoyance. With Poirot away, I was
uncertain how to act. Had he foreseen this arrest? Had he not, in all
probability, been the cause of it? Those questions I could not resolve.
But in the meantime what was I to do? Should I announce the arrest
openly at Styles, or not? Though I did not acknowledge it to myself, the
thought of Mary Cavendish was weighing on me. Would it not be a terrible
shock to her? For the moment, I set aside utterly any suspicions of her.
She could not be implicated--otherwise I should have heard some hint of
it.

Of course, there was no possibility of being able permanently to
conceal Dr. Bauerstein's arrest from her. It would be announced in every
newspaper on the morrow. Still, I shrank from blurting it out. If
only Poirot had been accessible, I could have asked his advice. What
possessed him to go posting off to London in this unaccountable way?

In spite of myself, my opinion of his sagacity was immeasurably
heightened. I would never have dreamt of suspecting the doctor, had not
Poirot put it into my head. Yes, decidedly, the little man was clever.

After some reflecting, I decided to take John into my confidence, and
leave him to make the matter public or not, as he thought fit.

He gave vent to a prodigious whistle, as I imparted the news.

"Great Scot! You _were_ right, then. I couldn't believe it at the time."

"No, it is astonishing until you get used to the idea, and see how it
makes everything fit in. Now, what are we to do? Of course, it will be
generally known to-morrow."

John reflected.

"Never mind," he said at last, "we won't say anything at present. There
is no need. As you say, it will be known soon enough."

But to my intense surprise, on getting down early the next morning, and
eagerly opening the newspapers, there was not a word about the arrest!
There was a column of mere padding about "The Styles Poisoning Case,"
but nothing further. It was rather inexplicable, but I supposed that,
for some reason or other, Japp wis