William Arden (Dennis Lynds)
William Arden was the first author to
take up the reins of the series after Robert Arthur (although
Arden did write "Moaning Cave" prior to Robert
Arthur's death). His style of writing initially seemed
similar to that of Robert Arthur, but as time (and the
books) went on, he brought his own unique style to the
series. For example, it is William Arden who perpetually
uses the word "fellows" as a noun of address
when one of the boys is talking to the other two.
As indicated in the title above, William Arden was a
pseudonym of Dennis Lynds, who also wrote books under the
names of Michael Collins, Brett Halliday, Maxwell Grant,
Mark Sadler, Carl Dekker, and John Crowe. Lynds used this
last pseudonym (John Crowe) in "Shark Reef" as
the name of a character who serves as the boys' client
and is a mystery writer.
William Arden gets credit for one of the boys' inventions
that lives through many of the books-the directional
finders. These devices could be used to track the
location of the other pair of devices; each directional
finder also had a red light that lit up when one of the
boys said "Help" near their respective receiver.
These devices were used in "Crooked Cat,"
"Shrinking House," "Monster Mountain,"
"Deadly Double," and others. All in all, one of
the more clever inventions of Jupiter Jones.
Dennis Lynds was the last surviving author of the
original series until 2005, when he passed away unexpectedly. You
can look at his website at