Silken Whispers: Casefile: The Yemeni Proposal

Eight years after their escape from the Chicago mobs, Sylvia Havenwood and Welsh Nixon finally manage to locate a clue to the mysterious Belet-Seri tablet in a cursed painting that claimed the life of its occult artist. Their search for answers links them with a Harvard expedition bound for war-torn Yemen; taking them from the Depression Era United States aboard a historic airship into the very heart of Nazi-controlled Germany.

However, these answers alert a mysterious entity known only as "the Eye." Shadowy assassins under the Eye's command come at them seeking the two women's mystically enhanced blood.

When an old competitor from their past rears their head, the women find that more enemies join their growing list of adversaries as the infamous Schutzstaffel joins in the blood hunt. All Sylvia and Welsh want is to simply find out what happened to them on that fateful day in Chicago - but more and more of the world's agents turn in against them.