"You and I must leave the island right now."
Mary stared at him, then turned wonderingly toward Jack, who felt his heart begin to pound warmly.
"You still don't understand what I'm trying to tell you, Professor," he said, boldly now. "Mary is not going with you. You've deceived her all her life. You've taken a fantastic amount of pains to bring her up under the delusion that she is Mary Alice Pope, who died in—"
"She is Mary Alice Pope," Kesserich thundered at him. He advanced toward them swiftly. "Mary darling, you're confused, but you must realize who you are and who I am and the relationship between us."
"Keep away," Jack warned, swinging Mary half behind him. "Mary doesn't love you. She can't marry you, at any rate. How could she, when you're her father?"
"Barr!"
"Keep off!" Jack shot out the flat of his hand and Kesserich went staggering backward. "I've talked with your wife—your wife on the mainland. She told me the whole thing."
Kesserich seemed about to rush forward again, then controlled himself. "You've got everything wrong. You hardly deserve to be told, but under the circumstances I have no choice. Mary is not my daughter. To be precise, she has no father at all. Do you remember the work that Jacques Loeb did with sea urchins?"
Jack frowned angrily. "You mean what we were talking about last night?"