there were good reasons why snacklit left irene alone for an hour, or more nearly two. he had a deadly fear that he had blundered into the observation of the law in a way which, whatever he might do now, would still be fatal to him. or, as an almost equal fear, that he had interfered with plans which might otherwise have gone smoothly in a way which professor blinkwell would not forgive. whatever the truth might be, it was imperative that he should know where his danger lay.

to do this in the permitted manner, it was necessary to get the preliminary message, which the professor received while at dinner, transmitted to his butler through three intermediaries, then to wait for the five minutes which were allowed for the return by the same circuitous method of the information that he had received it, and then to converse with him under assumed names, using a code adapted for such contingencies and from a different call-box from that which he had previously used.

and, after this, he was in no mood for an instant interview with the young woman he had so rashly entrapped. he required time to think. he was undecided, frightened, and rendered abnormally dangerous by his fear.

the form of his conversation with professor blinkwell would have rendered it difficult for him to learn all the facts of the case even had the professor been willing to give them. but he had been able, in oblique words, to explain sufficiently to enable him, with his superior knowledge, to understand more completely; and that gentleman had made two things clear. first, that he regarded snacklit's action as being foolish to the verge of imbecility, and as having hazarded the security of the gang to a degree that would be difficult to forgive. and, second that he must get out of the mess in his own way, and without assistance or further contacts with those whose security he had already jeopardized.

he was to deal with those who were now in his power in his own way. that might mean anything. but, in fact, it meant one thing only. in his own way. professor blinkwell and he both knew what that way was. when he said it, the professor had pronounced sentences of death both on the taxi-driver and the ambassador's daughter. as to the first, snacklit saw that it might be best. he had thought of bribery, but that held a risk. the man might refuse the offered notes. he might accept them and still report the whole incident to the police. he knew that professor blinkwell did not approve of risks. he made it a rule not to incur them. here was illustration of that. he had suggested - it might be said ordered - the two murders, and what was there that could be urged against him, even though every word should have been recorded. he had said that snacklit must deal with his trouble in his own way. who could blame him for that?

snacklit observed this without resentment, for he knew that professor blinkwell urged the same elaborate cautions on others which he practised himself. the drastic action which he now directed was (he would have said) the path of safety now.

and as to the man, snacklit agreed. indeed, the return of the taxi to the holborn cab rank, which was the one thing which had been done instantly, as the professor had advised, was a preliminary to the action against him that the occasion required. that could be no cause for worry. enquiry (if there should be any, which would depend upon the existence of near relatives and their dispositions) would be moderate at most, and that he would ever be traced to snacklit house was an extreme improbability. even if he were, against the blank denials which would be given, what proof would there be?

that was, if the girl should be silenced. professor blinkwell had seen that at once. pondering the problem with slower brains, though he was far from a dull man, snacklit saw it also.

to destroy the girl would rouse a far louder outcry than would follow the disappearance of any taxi-driver in london. taxi-drivers are a numerous race. ambassadors' daughters are rare, and correspondingly valuable. yet to destroy the driver and let her live might be most dangerous of all.

he regretted now that he had led her to his own home. he should have driven in any other direction rather than that. so he saw now. but he had not known whom she was till it was too late. he felt that she should have warned him earlier. the treatment he had received was unfair. being stirred to indignation by the view of the course of events, he felt a lively hatred of its author, which assisted his resolution to deal with her in a way which would remove the fear of her ever standing in the witness-box to testify against him.

it might seem to superficial consideration to be a perilous course, but actually it was the one in which safety lay. yet precipitate action - - ? no. he remembered a counsel of priceless wisdom he had once been privileged to hear from professor blinkwell's lips. a valid though subtle distinction had been drawn between the course adopted, in which boldness might often reduce pisk, and the method of execution, in which caution must be the unvarying rule. the professor had argued, with illuminating illustrations, that this rule is often reversed, by which peril and failure come. many who are cautious in the design are careless in the detail of what they do. . . . at this point in his reflections he touched the bell. he said "take the young lady some tea."