The ones under the effect have not lied to them and don't want to, though the larger group might have divergent opinions on the matter of how they are approaching the summons, as many wanted to be more aggressive about it. If too long pass without the summons yielding progress, the group will likely decide that their survival outweighs diplomacy and honesty. They are not at that turning point yet. The four-armed giants are hoping to counter such attempts by denying access to the summoning magic. They are confident that they can...
Many outside the octagon shift uncomfortably upon hearing all that.
"Please don't ask them how they are planning to do that." Says one a dark-skinned horned person.
They have neglected to use their powers for the sake of rest and entertainment. They continue explaining that they have consorted with pirates to get transportation and supplies. They also have helped escaped slaves, which is a crime. They have killed in self-defense, specially after the end of the world. They have collaborated with keeping the fact that the moon fixes the world's infertility problem a secret for several years(they had a infertility problem before the end), thus denying ten of thousands the ability to have children, because they prioritized making the moon defensible against a war over it. They expect that even the most diplomatically successful contact will result in some friction and are willing to accept that cost, with the possibility of waiting until groups have enough food and shelter, then locking them into different dimensions until they are not foolish enough to cause trouble again. They are planning to build themselves up and use magic to go back to previously visited dimensions and do things like steal slaves and some criminals (like people that have committed homosexual sex where that is illegal) which is likely very disruptive and hostile, though their man goal is figuring out how to provide safety and well-being to the multiverse...
They can name several political figures that might try conquer other worlds, but they (again) are not planning to give them the chance. Here are their names and countries. None are on the moon, and most are in this specific besieged city...