Sending

By means of this spell, the caster can contact a single creature with whom he is familiar and whose name and appearance are known. If the creature in question is not on the same plane of existence as the spellcaster, there is a base 5% chance that the sending does not arrive. Local conditions on other planes may worsen this chance considerably at the option of the DM. The sending, if successful, can be understood even by a creature with an Intelligence as low as 1 (animal Intelligence).

The wizard can send a short message of 25 words or less to the recipient. Also the recipient can answer in like manner immediately. Even if the sending is received, the subject creature is not obligated to act upon it in any manner.

[Player's Handbook]

School: Evocation
Level: 5
Rarity: Common

Range: Special
Components: V, S, M
Duration: Special
Casting Time: 1 turn
Area of Effect: 1 Creature
Saving Throw: None

Material Components: two tiny cylinders, each with one open end, connected by a short piece of fine copper wire (not consumed)