From bestselling indie author Laura Thalassa comes the newly revised and edited first book in her smash-hit dark fantasy romance between a siren and the "bargainer" she owes countless favors to. Callypso Lillis is a siren with a very big problem, one that stretches up her arm and far into her past. For the last seven years Callie has been wearing a bracelet of black beads up her wrist, magical IOUs for favors she once...