i suggest you escort them.
start at chillwind camp in WPL and go east. swim past scholomance north thowards land. take the road east.
once you get into EPL, follow the road but try to avoid the town along the road. make sure they have flight path to lights hope in case you need to go back.
the two RAF can summon each other, but i doubt your main can. so just escort one and summon the other.

do you know where stratholme is in EPL?