Shadowman: Soul Eaters (Shadowman: Soul Eaters #3)

Jack Boniface must travel to the Soulside to convince Sandria Darque to join him in his battle against her brother, Master Darque. Sandria may also be the best way to free Alyssa from the Magpie curse. But the journey into the Soulside won't begin unless Shadowman sneaks into Dr. Silk's lab and finds the Ring of Solomon!