Book 23 of The Three Investigators ยท 1975
The Mystery of The Invisible Dog
by Mary Virginia Carey. 152 pages, about 2.8 hours to read. Rated 4.0 out of 5 by 1 Open Library readers.
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How long to read The Mystery of The Invisible Dog
At 250 words a minute, the average adult pace, The Mystery of The Invisible Dog takes about 2.8 hours. That assumes 275 words a page over 152 pages.
| Your pace | Time |
|---|---|
| 150 words/min (slow, or reading aloud) | 4.6 hours |
| 200 words/min | 3.5 hours |
| 250 words/min (average) | 2.8 hours |
| 300 words/min | 2.3 hours |
| 400 words/min (fast) | 1.7 hours |
In the series
- Before this19. The Secret of Phantom Lake
- This book23. The Mystery of The Invisible Dog
- Next44. The Case of the Weeping Coffin
All 18 The Three Investigators books in order
Mystery and detective stories