The Bookkeeper Trophy - Death's Gambit - PSNProfiles

After beating the game and finishing with Ending A (siding with Death), I still seem to be missing five tomes, as can be seen below. Does anyone know where to find the remaining tomes and who the two "???" bosses are? There seems to be very little information online about this. Edit: Found the se

Death's Door Trophy Guide •

Death's Door Trophy Guide •

The Bookkeeper Trophy - Death's Gambit - PSNProfiles

Polk-Polk's PSN Profile •

Death's Door Trophy Guide •

Stab Stab Stab! Trophy Guide •

Copanele's collection of trophies and experiences - Trophy

Copanele's collection of trophies and experiences - Trophy

Copanele's collection of trophies and experiences - Trophy

Crystar Trophy Guide •

Death's Door Trophy Guide •

Death's Door Trophy Guide •

Death's Door Trophy Guide •