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Cover of The Mystery of the Green Ghost

Book 4 of The Three Investigators · 1965

The Mystery of the Green Ghost

by Robert Arthur Jr.. 172 pages, about 3.1 hours to read. Rated 4.0 out of 5 by 3 Open Library readers.

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How long to read The Mystery of the Green Ghost

At 250 words a minute, the average adult pace, The Mystery of the Green Ghost takes about 3.1 hours. That assumes 275 words a page over 172 pages.

Your paceTime
150 words/min (slow, or reading aloud)5.3 hours
200 words/min3.9 hours
250 words/min (average)3.2 hours
300 words/min2.6 hours
400 words/min (fast)2 hours

In the series

All 18 The Three Investigators books in order

Detective and mystery stories · Mystery and detective stories · Juvenile literature · Children's fiction