Riordan propagates a lesson in inclusivity through his various teens - the Greek and Roman myths – actually most ancient mythologies, tend to be inclusive in their outlook – as a result, LGBTQ relationships are common in Riordan’s pages, keeping him clear of the gender identity issues that have begun to ferment where Rowling is concerned. Though possibly putting up a case for monsters like the Minotaur who was brought into being by a curse and not his own choice might be counted as inclusion as we find in Riordan’s latest The Court of the Dead which he co-wrote with Mark Oshiro. Every kind of being, after all, has a right to exist and the many worlds are many countries with their migrant populations, some good, some bad.