Shouting their disappointment, they gazed upward into the foliage, but there was no sign there of the barbarian. Several of the more active soldiers scrambled into the branches and then Maximus Praeclarus, pointing in the direction opposite to that in which his home lay, shouted: "This way, there he goes!" and started on a run down the avenue, while behind him strung his detachment, their pikes ready in their hands. Moving silently through the branches of the great trees that overhung the greater part of the city of Castra Sanguinarius, Tarzan paralleled the avenue leading back to the home of Maximus Praeclarus, halting at last in a tree that over-looked the inner courtyard or walled garden, which appeared to be a distinguishing feature of the architecture of the city. Below him he saw a matronly woman of the patrician class, listening to a tall black who was addressing her excitedly. Clustered about the woman and eagerly listening to the words of the speaker were a number of black slaves, both men and women. Tarzan recognized the speaker as Mpingu, and, though he could not understand his words, realized that the black was preparing them for his arrival in accordance with the instructions given him in the garden of Dion Splendidus by Maximus Praeclarus, and that he was making a good story of it was evidenced by his excited gesticulation and the wide eyes and open mouths of the listening blacks. The woman, listening attentively and with quiet dignity of mien, appeared to be slightly amused, but whether at the story itself or at the unrestrained excitement of Mpingu, Tarzan did not know. She was a regal-looking woman of about fifty, with graying hair and with the poise and manner of that perfect self-assurance which is hallmark of assured position; that she was a patrician to her finger tips was evident, and yet there was that in her eyes and the little wrinkles at their corners that bespoke a broad humanity and a kindly disposition. Mpingu had evidently reached the point where his vocabulary could furnish no adequate superlatives wherewith to describe the barbarian who had rescued his mistress from Fastus, and he was acting out in exaggerated pantomime the scene in the garden of his mistress, when Tarzan dropped lightly to the sward beside him. The effect upon the blacks of this unexpected appearance verged upon the ludicrous, but the white woman was unmoved to any outward sign of surprise. "Is this the barbarian?" she asked of Mpingu. "It is he," replied the black. "Tell him that I am Festivitas, the mother of Maximus Praeclarus," the woman directed Mpingu, "and that I welcome him here in the name of my son." Through Mpingu, Tarzan acknowledged the greetings of Festivitas and thanked her for her hospitality, after which she instructed one of her slaves to conduct the stranger to the apartments that were placed at his disposal.