| Chapter # | Sentence # | Quote |
|---|---|---|
| 10 | 354 | The original View more quotes about signal">signal and its response constituted the exchange of a sign and countersign. |
| Chapter # | Sentence # | Quote |
|---|---|---|
| 10 | 351 | The notes were spelling out, in the language, a phrase or password. |
| 10 | 352 | These phrases change daily, and sometimes oftener. |
| 10 | 353 | I heard a responding whistle from above, also with a succession of notes. |
| 10 | 354 | The original signal and its response constituted the exchange of a sign and countersign. |
| 10 | 355 | The beast, whose hearing was doubtless acute, seemed discomfited by these sounds. |
| 10 | 356 | It twisted about, growling. |
| 10 | 357 | I heard a grinding sound from above and saw a wooden platform, in which there was a rectangular aperture, slide out from the wall. |