By: Joshua Glenn

The “X” People

By: Joshua Glenn

Assignment X

By: Joshua Glenn

Minus X

By: Joshua Glenn

Planet X

By: Joshua Glenn

21 great adventure novels of the Seventies!

By: Joshua Glenn

21 great adventure novels of the Sixties!

By: Joshua Glenn

21 great adventure novels of the Fifties!

By: Joshua Glenn

21 great adventure novels of the Forties!

By: Joshua Glenn

21 great adventure novels of the Thirties!

By: Joshua Glenn

21 great adventure novels from 1924–33!

By: Joshua Glenn

21 great adventure novels from 1914–23!

By: Joshua Glenn

21 great adventure novels from 1904–13!

By: Joshua Glenn

My 32 favorite 19th Century adventure novels!

By: Joshua Glenn

Let X Be Excitement (1969), by Christie Harris.

By: Joshua Glenn

Dangerous Mr. X (1929), by Francis Duncan.