After exploring the surrounding area, he met with the elders of the indigenous Aboriginal group, the Wurundjeri of the Kulin nation alliance, and negotiated a transaction for  which later became known as Batman's Treaty. The transaction, which is believed to have taken place on the bank of Merri Creek (near the modern day suburb of Northcote), consisted of an offering of: blankets, knives, mirrors, sugar, and other such items; to be also tributed annually to the Wurundjeri.
After exploring the area, he met with the elders of the Aboriginal group, the Wurundjeri of the Kulin nation alliance, and negotiated a deal that became known as Batman's Treaty. The transaction took place near Merri Creek (near Northcote), involving an exchange of blankets, knives, mirrors, sugar, and other items for annual tributes to the Wurundjeri.