There were plenty of elements of surprise, but only one of doubt.

"The thing's for YOU to keep here too ?" Waymarsh had been slightly ambiguous.
He wasn't ambiguous, however, after this enquiry; and Strether's understanding had probably never before opened so wide and effective a mouth as it was to open during the next five minutes.

It was no part of his friend's wish, as appeared, to help to receive Mrs.Pocock; he quite understood the spirit in which she was to present herself, but his connexion with her visit was limited to his having--well, as he might say--perhaps a little promoted it.

He had thought, and had let her know it, that Strether possibly would think she might have been round before.

At any rate, as turned out, she had been wanting herself, quite a while, to come.