Taken in Death [J.D. Robb]

Taken In Death (In Death, #37.5) - J.D. Robb

The Good Witch, Evil Witch thing got old really fast, but I liked this novella in spite of it. Short, but I can't see something like this being a full length In Death book, since there's a clear time limit to the plot (a crazy woman is holding two kids hostage, after all)