The Angel of Khan el-Khalili

This was beautifully written with a recognisable “mystery” that isn't super twisty, but executed well so it was still a joy to read. I can't tell how this relates to [b:A Dead Djinn in Cairo|29635542|A Dead Djinn in Cairo|P. Djèlí Clark|https://i.gr-assets.com/images/S/compressed.photo.goodreads.com/books/1459173382l/29635542._SX50_.jpg|49993780], though. I don't think I recall any angels named Seeker in it, nor any characters named Aisha or Aliaa? I'm certainly continuing this series.