Hospital Ship: The Rim Confederacy, Book 5 (Unabridged‪)‬

After exploding with rage and injuring some Caliphate marines, Tanner is sent to the Barony Hospital ship on a 90-day observation to see if he's really sane. At the same time, he is challenged by his doctors and psychiatrist to see if he can defeat his alcohol addiction and to combat his PTSD too.

Also on the ship is the Barony Secure labs, where the research teams are trying to find the Ikarian virus vaccine to give longevity to the RIM - and the Baroness is interested in their success.

While the Caliphate continues to try to find a way to steal the vaccine, they end up using a vacjumper - someone who can go right out into outer space with no suit and attempt to break into the lab that way.

Called on to forget about his illness, Tanner must rise to heed the call to defeat the vacjumper and to do that he must jump out into space on his own. Death, virus vaccines, and love all play a part for him and his quest.