Stranger From the Depths by Gerry Turner

[james_davis_nicoll]

Two boys confirm the Silurian hypothesis. Humanity is not the first civilized species on Earth.

Stranger From the Depths by Gerry Turner 

Comments

[oh6]

I read this in elementary school, possibly even as part of our English lessons, and from what I recall, mostly worried about how the teaching machine managed to be something other than a complicated way of inflicting brain damage, what was powering the tunnelling device which melted its way through rock, and how it avoided melting itself in the process.