Book Log 2017 #31: Set in Darkness by Ian Rankin

With the Scottish Parliament set to re-open, John Rebus is assigned as the police liaison to the new parliament, as its building lies within his precinct. When a rumored murder from long ago seems to be confirmed when builders unearth an old skeleton, the further discovery of a much newer corpse gives Rebus an unexpected murder to investigate. When a future member of the Scottish parliament turns up dead, and a down-and-out suicide case is found to have considerable financial resources, Rebus senses that there's something to connect all of these deaths.

On top of this, Rebus finds himself having to tangle with Big Ger Cafferty again (now out of prison thanks to a suspect diagnosis of terminal cancer), while both wind up dealing with a young new player in Edinburgh's underworld, who would be happy to take over for Cafferty (and inherit Rebus as a friendly link to the cops).

Highly entertaining entry in the series.