Chapter

 1 III |           shoe.~This was indeed a clue. Lecoq’s hopes at once revived;
 2 III |         me in this way. We find a clue, and instead of following
 3 IV  |          they would have lost the clue entirely had it not been
 4 IV  | carelessly had just followed up a clue as he, veteran though he
 5 VI  |          himself, hoped that some clue as to the man’s identity
 6 VI  |           was something. It was a clue; and in this absolute darkness
 7 VI  |           that gave the slightest clue to their identity, either
 8 VI  |     affair, without the slightest clue to guide them. Of course,
 9 VII |        means could he secure some clue to the murderer’s identity?
10 VII |       that might give the desired clue.~It was not until the gloomy
11 IX  |         Beaumarchais? With such a clue and a little patience, the
12 X   |          he continued. “But not a clue! Who can tell me what powerful
13 XV  |           your effort to obtain a clue concerning Gustave’s identity;
14 XV  |             thought he, “I have a clue that may lead me to the
15 XVII|         seemed only one remaining clue to success: the letter signed “
16 XVII|           Seizing upon this frail clue, as a drowning man clutches
17 XIX |      strange epistle furnished no clue whatever to the mystery;
18 XXIV|         diamonds, I knew that the clue was quite lost.”~“There