The next book Sekret Machines 'A Fire Within ' will be out 18th Sept...
https://tothestars.media/blogs/news/...-a-fire-within

Some details more on site

...A Fire Within is an action-packed saga of archeological adventure, government conspiracy, historical mystery and unimaginable technology.

“One of the largest areas of study when dealing with the UFO phenomenon is consciousness and the human mind,” says DeLonge. “A.J. was able to weave that into the storyline with a tapestry of information never before released. He’s providing us with an opportunity to learn more about ourselves and the greatest story never told.”

“Book One focused primarily on the machines themselves--hardware, if you like--but in the second installment of the series we push the story into the gray areas between the normal and the paranormal in more clearly human terms, exploring the idea that as technology might make exponential evolutionary progress, so might people themselves,” says Hartley. “The result continues the story of the first novel, picking up pretty much where it left off, but shifts the tonality of the narrative into new territory, new adventures and new sekrets.”...