"The girl has disappeared!" she exclaimed the moment Astro appeared. "When I woke up, she wasn't in the room. She must have risen and dressed while I was asleep. But I found this." She held out a short curved dagger, in a morocco sheath.
Astro, withdrawing the blade, found it was engraved with an Arabic inscription. He read the motto aloud:
"For the heart of a dog, the tongue of a serpent!"
"Ah!" he commented, "this may help some. Our little friend apparently isn't so timid as she appeared. But, somehow, this doesn't look like the property of a Babist. In spite of their many persecutions, I believe they are usually non-resistants. Well, Valeska, we'll have to find the girl, now! Come along with me immediately."
His green limousine was already at the door in waiting. Both jumped in, and as they drove to the southern end of the city Astro explained:
"There are two Syrian quarters in New York. One is in Brooklyn, the other down on Washington Street, near the Battery. We'll go to that one first, and see what we can find there. The Turkish flag reminds me that that is often hung outside stores where they sell Turkish rugs. We'll try that clue afterward."
Reaching Washington Street, the two left the motor-car and walked toward the Battery, past rows of squalid houses. At every corner Astro stopped and gazed about deliberately.
Finally, he seized Valeska's arm with a quick gesture. "Look at that sign!" he exclaimed.
On West Street, facing the Hudson River, but with
