Day Four: Mystery

Credits

• Alan J. Verone
  engineer
• Andreas Grotenhoff
  engineer
• Arjen Anthony Lucassen
  Hammond organ, acoustic guitar, bass guitar, electric guitar, keyboard, lap steel guitar, lead vocals, mandolin, mix, producer, recording, synthesizer
• Dan Kearley
  engineer
• Devon Graves
  guest, lead vocals
• Ed Warby
  drums (drum set), guest, membranophone, percussion
• Gary Wehrkamp
  engineer
• Hans Pieters
  engineer, recording
• Heather Findlay
  guest, lead vocals
• Irene Jansen
  guest, lead vocals
• James LaBrie
  guest, lead vocals
• Jurgen Vries
  engineer
• Magnus Ekwall
  guest, lead vocals
• Marcela Bovio
  guest, lead vocals
• Marieke van der Heyden
  cello
• Pieter Kop
  recording
• Robert Baba
  violin