Glamaryn the changeling delights in experiencing new and interesting things, so when it learns of a charm that can take it to other worlds, it seizes the opportunity to have an adventure. The problem is that when Glamaryn travels from world to world, it leaves portal after portal open behind it - portals that could allow monstrous things to invade. Realizing the danger, Juyl the water-wight sets out in pursuit, and with the aid of wraiths, trolls and even a hungry were-goat chance met along the way, it seeks to put things right, which turns out to be more of an adventure than any of them bargained for.