Today, book 2 of The Intrepid Saga, A Path in the Darkness, came out on Audible! It's narrated by Khristine Hvam who really nails Tanis and the cast of characters, and gets the subtle by-play between Tanis and Angela.
Outsystem (book 1) is already out as well. Building Victoria and Destiny Lost are coming May 28th and June 28th respectively.
Outsystem on Audible ($2.99 if you already have the ebook).
A Path in the Darkness on Audbile ($2.99 if you already have the ebook).