Macaque considers for a second. He's not promising to stay in that world or anything of the sort. Stealing a shadow, even from a very powerful being, is doable. He doesn't even need to get close.

There is another Six-Eared Macaque in that world, which could make things messy. But could doesn't mean will.

"Why do you want their shadow removed from them?" He's not sure that he's going to get an answer, but it's worth a try.