Wall of Shadow

An absolutely black plane of shadow forms a vertical opaque wall--up to 90 feet long, 30 feet high, and 1 inch thick--centered on a point you can see within range. Alternatively, you can shape the wall into a sphere up to 30 feet in diameter centered on a point you choose within range. The wall remains in place for the duration. If you position the wall so that it passes through a space occupied by a creature, the spell fails, and your action and the spell slot are wasted.  

The wall blocks all information including sound, Trusight, blindsight, scrying or other divination magic used to see beyond the wall. If a creature tries to teleport through the wall,  it must first make a Charisma saving throw. On a success, the teleportation is successful. On a failure, the creature can't move through the wall, and wastes the use of the spell or effect. The wall also extends into the Ethereal Plane, blocking ethereal travel.

You and creatures you designate at the time you cast the spell can see and hear through the wall normally, though it is still perceptible and a smokey plane.