The PDFs of both books in Historica Arcanum: Era of the Crusades.

The bundle includes Historica Arcanum: Era of the Crusades, and Historica Arcanum: Sigil of Jerusalem.
 
 
Era of the Crusades
 
A 5th edition setting module
 
Page Number: 271
 
Contents:
Foreword
Introduction
Chapter I: World of Historica Arcanum
Chapter II: Character Options
Chapter III: Jerusalem & Cairo
Chapter IV: Book of Ingenious Monsters
Chapter V: Appendix

 
Sigil of Jerusalem
 
A 5th edition adventure module
 
Page Number: 237
 
Contents:
Foreword
Chapter I: Introduction
Chapter II: Player Options
Chapter III: Characters
Chapter IV: Sigil of Jerusalem
Appendix