Years ago, Lieutenant Uhura befriended a diplomat from Eeiauo, a land of graceful, catlike beings. The two women exchanged forbidden songs and promised never to reveal their secret. Now the Starship Enterprise™ must race to save the Eeiauoans before a deadly plague destroys them all. Uhura's secret songs may hold the key to a cure, but the clues are veiled in layers of mystery. The plague is killing humans, threatening other planets -- and Kirk must crack the code before the Enterprise succumbs!

Tocohl Susumo finds her plans to attend the festival of St. Veschke interrupted by her rescue of a young woman and her subsequent involvement in a mystery in Lassti (view table of contents)

On the distant planet of Mirabile, a settlement of human colonists from Earth is jeopardized by genetic mutants of Earth plants and animals, and it is up to ecological troubleshooter Mama Jason to destroy the menacing mutants. Reprint.