At the end of red cat cave it's assumed the party keeps going on to find lost mammoth valley, starting the second portion of the hex crawl (with actual exploration), for the reaver squad encounter this assumes that Ivarsa has already found red cat cave and the map (which isn't necessary because she has already been to lost mammoth valley but I digress, I don't actually care about this minor thing).
My real question is how far back do you start the Burning mammoths from the broken tusks as they begin chapter 3? For continuity's sake you could continue plotting their position from chapter 2, but there is also a potential that your following has left them in the dust by like half the map, has anyone who has run this seen this as a problem (removing the looming threat) or do you just let your characters have the win but still have burning mammoth scouts/reavers in the valley to harry them since Ivarsa can teleport small numbers of troops ahead anyway?
What have you folks run across in this?