Super Short Summary

Endymion by Dan Simmons follows the journey of Raul Endymion, who is tasked by Martin Silenus to find Aenea, who appears at a time-traveling portal called the Time Tomb. They evade the formidable Church army, the Pax, led by Father-Captain de Soya. Raul and Aenea travel through various planets, culminating in Aenea revealing hidden truths and ultimately reaching a revitalized Old Earth, setting the stage for future conflicts.