Pearls of Wisdom

These pearls are deadly.
Someone is killing Kumihos by stealing their pearls. These are no ordinary pearls, but fox beads—the source of a fox-shifter's power. When swallowed by a human, a fox pearl grants unlimited wisdom and a little magic. Enough wisdom and magic to make them dangerous.
Seren is called in on the mission and heads off to South Korea with her husbands to stop the murderer. Joining them is the King of Hell, and he is nearly as troublesome as the mission becomes. Something is bubbling between Seren and Astaroth, something that must come to a boil soon, and she's not looking forward to the mess. But she'll deal with it, if only she can save the Kumihos.