When magua was secretly talking to monclam what did magua do?

In James Fenimore Cooper's "The Last of the Mohicans," when Magua secretly speaks to Montcalm, he engages in a deceptive conversation to manipulate the situation to his advantage. Magua uses this opportunity to express his grievances against the British and to further his own agenda while concealing his true intentions. This interaction reflects his cunning nature and ability to navigate the complexities of alliances during the conflict.