First book at 68.

He was last in his class at the Earth Corps Fleet Academy. Lieutenant Brian Huffman is seen by most of his Captains and peers as a joke, but through quick thinking he brought a rebellion to a violent end. Years later, although still not seen fit to be an officer by some, he was picked to solve a double murder. Or was he picked to be the next target?

Follow along as Brian and his friends fight their way to the stars to save mankind. Rushing from the frozen reaches of Neptune to the terror-filled tunnels of Mars stopping a second rebellion. Helped by two Artificial Intelligences, one who thinks she's Irene Adler and her brother, who wanted to be Hal-9000. All under the watchful eye of the ship's cat with his own ideas of justice.

Review
“I'm really liking your storyline.......it's got it all. The wronged, but highly skilled lead character......the military component......the space terminology and gadgets......the cat is a great touch......there is rebellion, intrigue, conspiracy, murder, betrayal, and all sorts of mayhem........set in outer space. You go into enough detail that I can easily visualize the ship and all of its components.”
G W Andrews.
Author of “God Bless Chesty”, “Taking Back the Street”, “The Old Man on the Bench”, “The Day the Glass Shattered”, “The Widows of Dry Creek” and “The Death Coach”. Which are all available on Kindle.
Last in His Class is a free read with Kindle unlimited.