I know that these little novellas within the In Death series are not necessary for completing the series, but I find them fun little interludes. Interlude in Death is a fantastic break between the darkness of the previous novel, allowing fans the chance to catch their breath. To make it even more of a break, the story occurs off-planet. 

Interlude in Death is a fun locked-door/planet mystery. At its heart, however, are Eve and Roarke. While we have seen them work together in the past, this is the first story where we see them wholly reliant on each other. There is no fuss, no arguing. Nothing but cooperation and collaboration. As I said before, it is a nice reprieve from the intensity of the past novels.