My The Torcal Trilogy boxset, contains The Grotto's Secret, The Sacred Symbol and The Luna Legacy.

A historial mystery thriller series set between modern day and medieval ...

The Grotto's Secret Sample Chapters
https://bookluver.com/pins/the-grottos-secret-free-chapters

The Sacred Symbol Sample Chapters
https://bookluver.com/pins/the-sacred-symbol-free-chapters

If you like the first few chapters and want to continue reading grab them on Amazon:

THE GROTTOS SECRET
http://getBook.at/The-Grottos-Secret

THE SACRED SYMBOL
http://getBook.at/The-Sacred-Symbol

THE LUNA LEGACY
http://getbook.at/TheLunaLegacy