"On your business?"

"Yes. I told you once that Miss Marks was an old friend. We've known each other for years. She used to live at Albuquerque. Cath and Bill, whom you met, are her cousins—or rather, Cath is. Mothereen is fond——"

"Ah, now I'm sure of something I only wondered about before!"

"Will you tell me what that is?"

"A note for Meesis Garth from the Hotel El Tovar," announced the voice of the half-breed maid.

"Bring it to me!" Marise ordered.

The girl, instinctively aware that she'd interrupted a "scene," tripped across the terrace with an apologetic air. Marise almost snatched an envelope from a little silver tray and tore it open. Her strong young eyes could just make out through the dusk a few lines of written words.

"This is from Zélie Marks!" she exclaimed, looking up at Garth. "She wants me to come over at once and see her at the hotel. She says she has been ill, and that's the reason she's staying on there."

"She tells the truth. She had appendicitis. They thought there'd have to be an operation, but they cured her up—or nearly—without. Why does she ask to see you?"

"She says she'll explain everything when I get there."