The Keys of Hell vs Brennendes Geheimnis — Which Should You Read First?

Both The Keys of Hell and Brennendes Geheimnis are beloved by readers. Here is what RateYourReads readers say about both, plus similar books you might enjoy.

• Holy Sister by Mark Lawrence
• The Hugo Winners. Volume 3, Book 2 by Isaac Asimov
• Country by Danielle Steel
• The house on the strand by Daphne du Maurier
• Weise von Liebe und Tod des Cornets Christoph Rilke by Rainer Maria Rilke
• Carry On by Rainbow Rowell
• Les Souterrains by Jack Kerouac
• Qalb al-layl by نجيب محفوظ