Thin the Veil

You channel powerful conjuration magic to alter and weaken the veil between the planes of existence. For the spell's duration, the area within a 1-mile-radius sphere centered on the spot the spell was cast in is under the following effects:

• The range of any spell or magical effect that teleports one or more creatures is doubled.

• When a conjuration spell that summons one or more creatures is cast, consider it to have been cast at one level higher. For example, if Conjure Elemental was cast as a 5th-level spell, consider it to have been cast using a 6th-level spell slot.

• Any creature within the area can see into the Ethereal Plane and vice versa, though creatures cannot interact with one another across planes.

• Spells like Teleport or Sending cast within the area or targeting a creature within the area have no chance of causing a mishap or failing.

At Higher Levels. When you cast this spell using a 7th-level spell slot, the duration is 8 hours. When you use a spell slot of 8th-level, the duration is 24 hours. When you use a spell slot of 9th-level, the spell lasts until it is dispelled.