Cethleann was born in a time of great joy for Mithris Tarn. At the beginning of her year of birth, Juniper Bhitheas was named the new High Alpha of the Tarn, replacing her mother who had passed on months previously. After taking on her Second at the first new mean of the year, the High Alpha was blessed with her first pregnancy and in late May she gave birth to six healthy pups. The other pack mothers of the Tarn rejoiced for it is tradition in their culture that the High Alpha's litter must be the largest, so those who have more children than her must choose from their own litters which must be sacrificed to the Gods to set right the balance.

Juniper's large litter was a sign of fortune and of great things to come for those of the Tarn. For Cethleann, it meant her entire life, for she was born in mid-June in a litter of five to the Darrochs--one of the three great families of the Tarn. Had the High Alpha's litter been any less, it would have been Cethleann's whose life was forfeited for she was born small and weak; the clear runt of the brood.

For the Darroch family, there was little to be rejoiced with their ability to leave her alive. To kill without the Divine Blessing was sacrilege in the Tarn, so as much as the warrior family would have liked to have destroyed their shameful weakling daughter, they were forced to keep her and raise her in the tradition of their fore-mothers. Upon reaching one year of age, however, they were sadly within even divine right to cast their frail daughter out of their pack, out of the Tarn and out of memory.

After traveling alone on the brink of death, she was found by the Nereides who have her back her life. While their beliefs were not so far from her own, she worked tirelessly to make her place amongst them and eventually grew to be one of their most devoted sirens in one of the sister packs scattered across the world. She contributed five daughters and two sons to strengthen their ranks before her untimely death just after the birth of her second litter.