Have all the prayer books... so why "Study (1)"?

[onigame]

I'm at level 50, maxed out all stats, have 9 different prayer books,
and know the prayers in all of them.

So why does my screen still say "Study (1)"?

Is there a super-secret book out there?

[dos350]

yes~ eeeeeeeeeeeee

[Timo Pietilä]

I'm at level 50, maxed out all stats, have 9 different prayer books,
and know the prayers in all of them.

So why does my screen still say "Study (1)"?

Is there a super-secret book out there?

That's a leftover bug from merging two of the detections in one (traps and stairs/doors).