"I'm not sure, but I think so. They must have been locked—though how could any one have got in unless I'd forgotten to turn the key?"
Heath had risen and stood listening to the girl's story with grim bewilderment.
"Probably the bird with those galoshes again," he mumbled. "I'll get Jerym himself up here this time."
Markham nodded and turned back to Ada.
"Thank you for telling us, Miss Greene. Suppose you go to some other room and wait for us. We want your room left just as you found it until we've had time to examine it."
"I'll go to the kitchen and stay with cook. I—I don't want to be alone." And with a catch of her breath she left us.
"Where's Doctor Von Blon now?" Markham asked Sproot.
"With Mrs. Greene, sir."
"Tell him we're here and would like to see him at once."
The butler bowed and went out.
Vance was pacing up and down, his eyes almost closed.
"It grows madder every minute," he said. "It was insane enough without those foot-tracks and that open door. There's something devilish going on here, Markham. There's demonology and witchcraft afoot, or something strangely close to it. I say, is there anything in the Pandects or the Justinian Code relating to the proper legal procedure against diabolic possession or spiritism?"
Before Markham could rebuke him Von Blon entered. His usual suavity had disappeared. He
