Board Thread:Antaeus' Arena: Audience Chamber/@comment-1515612-20160819163134/@comment-25155763-20170217223453

Zane T 69 wrote: Olympus, Camp Half-blood, Camp Jupiter Vs Asgard and Odins warrior thingys that Magnus Chase joined.

Or: Olympus, Camp Half-Blood, and Camp Jupiter VS Egyptian pantheons and those schools of magic, with the weird names. Lol you could've just searched the names considering this is the wiki for all things teen series of Rick Riordan.

ps. It's Hotel Valhalla and The Nomes