The Trials of Apollo North America to restore the remaining four Oracles and defeat the triumvirate of Roman emperors-turned-Gods, while also being helped by Leo Valdez, the now-mortal Calypso and Festus the bronze dragon. "The Burning Maze" is the third book in the series. It released on May 1, 2018. The book follows Lester Papadopoulos/Apollo, Meg McCaffrey and Grover Underwood while they try to rescue Herophile, an Oracle that speaks only in puzzles, from the Roman emperor Caligula and his talking horse, Incitatus. In the process, they met some strixes that feed only on blood, which they finally repel using strawberries. While sleeping, Apollo
Matthias, Holy Roman Emperor Holy Roman Emperor, as a result of Rudolf's illness. Allying himself with the estates of Hungary, Austria, and Moravia, Matthias forced his brother to yield rule of these lands to him in 1608; Rudolf later ceded Bohemia in 1611. Matthias's army then held Rudolf prisoner in his castle in Prague, until 1611, when Rudolf was forced to cede the crown of Bohemia to his brother. After Matthias's accession as Holy Roman Emperor, his policy was dominated by Klesl, who hoped to bring about a compromise between Catholic and Protestant states within the Holy Roman Empire in order to strengthen it.