Does anybody know if Cussler and Du Brul are doing a tour or book signing to promote the new book?

There's never been a Kemprecos/Cussler or a Dirgo/Cussler book signing tour that I know about, so I very much doubt whether there would be a DuBrul/Cussler tour.

The only "shared" book signing tour was with his son, Dirk, for Black Wind

Awww, too bad.

Here is a question regarding Jack DuBrul,

In a few of DuBrul's books I have seen him acknowledge Jack DuBrul. Is it a brother, or another Jack DuBrul or what?