Filling in some of the gaps in the whole RIP, Final Crisis saga, the missing chapters here should really be read sort of in between those. I dunno, it seems awfully messy and disjointed but it's nice to finally have it all filled in so that it makes sense. Wait, did I say makes sense? None of it makes sense, obviously but now all the glorious nonsense hangs together better. Still, messy. The other two are a past/present/future spanning mystery that's clever enough and a slightly more straightforward adventure that's a solid read, if not spectacular.