The battle of Ireland. Sequel to Walking Through The City

After Percy, Valkyrie, Max and all their friends have gotten out of America, there next stop is Ireland. Here they have to try and work out why all three groups have their enemies working together and if they can stop them. Not only that, but Tanith and her followers are catching up. Will Percy and Annabeth's plan to get Tanith back work? Will the groups find out what's actually going on? It's just another day of saving the world. (Read walking through the city first for this to make sense)