The following evening, at Waxflatter's loft, Holmes and Watson discover a picture of the three victims and a fourth man, Chester Cragwitch, who is the remaining victim. However, they are discovered by Professor Rathe and Mrs. Dribb, who plan to expel Watson and Elizabeth in the morning. That night, while Elizabeth heads to Waxflatter's loft to salvage his work, Holmes and Watson head to see Cragwitch, who explains that in his youth, he and the other men had discovered an underground pyramid of Rame Tep and the ancient tombs of five Egyptian princesses while building a hotel in Egypt. Their find led to an angry uprising by the people of a nearby village, which was violently put down by the British Army. The men returned safely to England. However, a local boy of Anglo-Egyptian descent named Eh-Tar and his sister vowed revenge against them after their parents were killed in the attack, and also seeking to replace the bodies of the five Egyptian princesses. Cragwitch is then shot by a poisoned thorn and tries to kill Holmes, but is knocked unconscious by Lestrade, who reconsidered Holmes' advice after he had suffered the hallucinations himself.