There is an omnibus of the first eighteen (!!!) titles in the Meg Langslow series by Donna Andrews. It’s called The Meg Langslow Series Thus Far: Books 1-18 of the Series. It’s been available in the UK before at good prices, but it’s never been less than $100 in the US. Now it has dropped to $39.49 at Kindle US. That works out to only a bit more than $2 each if you need all eighteen books. But this could work out to a pretty good deal even if you just need some of them, so do your math! I’m quite fond of this series, and I’ve laughed out loud through many of the books – and not just due to the puns in their titles!
Buy at Kindle US