The first two books set in the Mapped Space Universe, The Mothership and The Mothersea, are now available in an omnibus ebook edition.

The Omnibus offers both books at 25% off the price of the books sold separately.

Pre-orders can be made on Amazon.com now while the Omnibus itself will be available from January 7, 2019.

https://www.amazon.com/dp/B07LH3BP6K