Little, Brown Books for Young Readers will release "The Short Second Life of Bree Tanner" on June 5.
The novella is told from the viewpoint of Bree, a newborn vampire featured in "Eclipse." That's one of the books in Meyer's best-selling teen-vampire saga.
Meyer says in a statement Tuesday the novella had originally been planned for "The Twilight Saga: The Official Guide." But she says it became too long to fit into the guide.
The publisher says $1 for each book sold in the U.S. from the first printing of 1.5 million copies will be donated to the American Red Cross International Response Fund. It supports disaster relief efforts such as those now going on in Haiti and Chile.