They rode on in silence, the horses brushing.
The Schoolmaster's head was bent in thought. He rode in easy, slouching, negligent fashion, and seemed to have forgotten he was not alone. Deirdre spoke first. Her voice had a quick, low-toned intensity.
"I made up my mind on the way, to-day, to ask you what this business is Conal's on, and if you are with him, or not?" she said. "I ought to know. I'm not a child, and I'm with you whatever it is. I have an idea; but you ought to tell me, more than ever now that McNab——"
"Has his suspicions."
The Schoolmaster looked into her steady eyes.
"Are you in this with Conal?" she asked.
"I wasn't until last night," he said. "I changed my mind suddenly and joined him."
"What made you?" she inquired breathlessly.
He did not reply.
"I know—it was that necklace!" The reason had come to her instantly.