Battlecruiser Alamo: Aces High

Once again the Battlecruiser Alamo is launched on an expedition deep into unknown space, but instead of a farewell party Fleet Captain Daniel Marshall faces an assassin's blade wielded by a mysterious assailant. With an unknown enemy facing them from beyond the frontier of the Triplanetary Confederation, one armed with a weapon capable of destroying a starship with a single shot, a deserted space station holding a deadly secret from an alien past, and a disgraced midshipman added to the crew at the last minutes, this time even the veteran starship might at last have met its match...

Aces High is the thirteenth book in the Battlecruiser Alamo series.