(amazon customer) Nick and Lauren (2015-04-19 : 4 of 5 stars) ''I enjoy reading these books if for no other reason than ...'' : The second in the Rick Brant series is just as delightfully cheesy as the first. The stereotypes of the people in India, the lost city of ancient Mongols, the gold and danger and narrow escapes using science and the timely intervention of the ever loyal boy from India. I enjoy reading these books if for no other reason than that cheesy goodness.

(amazon customer) K. Hettich (2013-01-22 : 5 of 5 stars) ''A young adult series'' - Again, this series is purported to be for boys since they involve science and the solving of a mystery. The son of a scientist and his companion get involved in scientific adventures. I read them in the late 50s and early 60s and I'm a girl. I loved them.

(amazon customer) Daniel W. Hays (2008-02-10 : 4 of 5 stars) ''A Real Blast From the Past,'' This is the second book in a series the publishers called "Science Adventures" or "Electronic Adventures," using both labels seemingly without real reason. Created by "John Blaine," who was a writing team named neither John nor Blaine, the Rick Brant books provided solid, reliable adventure with a touch of what was, at the time, cutting-edge science.
The time was the 1940s (though the series survived into the 1960s). The science in "The Lost City" is an experiment to bounce a radar signal off the Moon. For this purpose, Rick and his friend Scotty accompany the scientists from Rick's father's group to Tibet.
Most of the adventure comes from the efforts of a mysterious group to stop their expedition. The title city turns out to be the burial place of Ghengis Khan, and the boys find themself captive in a very odd prison.
The Rick Brant books have held up very well in terms of the adventure portions. The science is all rather quaint to modern readers. But "John Blaine" wrote well for young boys (and a rather large group of girls), and this series is still a solid read.
The books are hard to find. They originally sold for $1. Modern reprints run close to $30. If you buy an original printing on E-Bay, you may as well start your bid at about $10, as the Brant books rarely sell lower than that...and some of the later, more rare titles in the series can sell for hundreds of dollars.
All of the books in the series prior to number 17 were published with dust jackets. 17 and later all have library bindings. Some reprints of the earlier titles also have library bindings. The contents are the same, but collectors prefer the dust jacket copies for the earlier books.

(Amazon Editorial Reviews) The Lost City is the second book in a series of 24 adventure and mystery novels. It was written by John Blaine, a pseudonym for authors Harold L. Goodwin and Peter J. Harkins. It was published by Grosset and Dunlap in 1947. The first edition and early printings were published in reddish-tan cloth-bound hardcovers with an illustrated dust jacket. The series title on the front panel of the dust jacket was "A Rick Brant Electronic Adventure." Later printings into the fifties and sixties were published in pictorial hardcovers with no dust jackets, to match the bindings of Books 17-24, which were never published with dust jackets. In addition to this change in binding, the series title appearing on the front cover of each book was often (but not always) changed to "A Rick Brant Science-Adventure Story" at that time. Although the binding was changed, the cover illustration remained the same as that of the dust jacketed edition. The storyline of the series features teenaged Rick Brant and his former-Marine pal, Don "Scotty" Scott, who live on Spindrift Island, off the coast of New Jersey, where Rick's father, Hartson Brant, heads the Spindrift Foundation, a group of scientists. Throughout the series, Rick and Scotty are involved in various adventures at home and abroad. In The Lost City, the second book of the series, Rick and Scotty journey to the Himalayas to set up a relay station to bounce a radar signal off the moon.