The Makololo were afterward incited to make a foray against some tribes to the eastward; the Mambari bargaining to use their guns in the attack for the captives they might take, and the Makololo were to have all the cattle.

They went off with at least two hundred slaves that year.

During this foray the Makololo met some Arabs from Zanzibar, who presented them with three English muskets, and in return received about thirty of their captives.
In talking with my companions over these matters, the idea was suggested that, if the slave-market were supplied with articles of European manufacture by legitimate commerce, the trade in slaves would become impossible.

It seemed more feasible to give the goods, for which the people now part with their servants, in exchange for ivory and other products of the country, and thus prevent the trade at the beginning, than to try to put a stop to it at any of the subsequent steps.

This could only be effected by establishing a highway from the coast into the centre of the country.
As there was no hope of the Boers allowing the peaceable instruction of the natives at Kolobeng, I at once resolved to save my family from exposure to this unhealthy region by sending them to England, and to return alone, with a view to exploring the country in search of a healthy district that might prove a centre of civilization, and open up the interior by a path to either the east or west coast.