Tumblestrum's Letter

You send a written letter no more than 500 pages in length to a creature with which you are familiar. The spell enables creatures with Intelligence scores of at least 3 to read the message in the language they can best read without any loss of meaning. Additionally, one spell scroll containing a spell of 1st level may be included with the letter as an attachment.

You can send the letter across any distance and even to other planes of existence, but if the target is on a different plane than you, there is a 5 percent chance that the message is delivered to a creature with a similar name.

Any attempt to send a document that is a spellbook or is a magic item immediately fails and the spell slot is expended.

At higher levels. When you cast this spell using a spell slot of 6th level or higher, increase the length of the letter by 100 pages, and the level of spell scroll attachable by 1, up to a maximum of 900 pages and 5th level respectively. Only one spell scroll may be attached, regardless of the level of spell cast.