As players enter the Rosymorn Monastery in Baldur's Gate 3, they can check a plaque under a statue that mentions a holy relic, the Blood of Lathander. This relic obviously isn't sitting out in the open, and so players won't have a chance to find it until after dealing with Crèche Y'llek.
Baldur's Gate 3: How to Solve Rosymorn Monastery Puzzle
Players have a chance to find a legendary mace in Baldur's Gate 3, but only if they know how to bypass the traps.