About the Book
Nobody believes the legendary Seal of Solomon exists-nobody that is, but the dangerous organization, Vortex.
A sigil supposedly shows the way to the Seal, and to total destruction.
Abigail and Riley are on the case, but they discover dark powers, an old enemy, and something more.
Sigil is Book 4 in the Relic Hunters Taskforce series by USA Today Bestselling Author, Ruth Hartzler.