Barrier Chalk

These chalk come in packs of 1d4+2 Sticks. One stick of chalk can protect one 5 foot square area before crumbling into dust.

Any space protected by this chalk has a barrier around it that stops undead and Evil creatures from entering. Any that try must make a DC 14 Wisdom save to enter the space and have disadvantage on attacks and saving throws while inside the space. Creatures and Objects inside the barrier cannot be attack from the outside by evil or undead creatures unless they pass the Wisdom save each turn they try. The barrier lasts 1 hour unless someone or something actively spends its action breaking the line of chalk creating the barrier.