Book One of the Sisters of Sha Ka Ree: The Arena

Admiral Hiroshi Mifune never thought a simple diary entry would threaten interstellar war. He was content in semi-retirement at Starfleet Academy. A chance discovery however, meant that he would be forced to commit treason, cooperate with an old enemy, and ask for help from the best student he ever had, one Jean-Luc Picard, all to save the Federation from potential extinction!