book reccs for christian dad

hi all! my dad (50+) is a christian man, but i’m personally non religious so i thought id reach out on here for some good reccs for christmas gift! i know of two books he’s enjoyed in the past

1. the apocrypha and pseudepigrapha of the old testament by r.h. charles
2. the mystical theology of the eastern church by vladimir lossky
3. he also enjoys fantasy novels so if you have any niche (bc he’s read most of the popular series) recommendations in that realm you’ve enjoyed id love to hear it!

generally i think my dad falls into a more “traditional” christian viewpoint, he grew up nazarene. i know ive also heard him talking about identifying as orthodox. he’s not a huge fan of religion being based in feelings.

i’d appreciate any good reccomendations! if you have a good idea that’s not book related id be open to that as well, thank u! :p