Chilo's advice seemed wise, therefore.

Standing before the gate, they could look at all who passed; Ursus it was easy to recognize by his form and size.
"Let us follow them," said Chilo; "we shall see to what house they go.

To-morrow, or rather to-day, thou wilt surround the entrances with slaves and take her." "No!" said Vinicius.
"What dost thou wish to do, lord ?" "We will follow her to the house and take her now, if thou wilt undertake that task, Croton ?" "I will," replied Croton, "and I will give myself to thee as a slave if I do not break the back of that bison who is guarding her." But Chilo fell to dissuading and entreating them by all the gods not to do so.

Croton was taken only for defence against attack in case they were recognized, not to carry off the girl.

To take her when there were only two of them was to expose themselves to death, and, what was worse, they might let her out of their hands, and then she would hide in another place or leave Rome.