- a group of books written by a group of writers
- each book in the series stands alone
- each novel is written by a different author
- each book may follow another set of characters, but follow the general storyline like a murder or a police investigation
- each novel drops more clues
- the last book ties loose ends
- includes 5 to 12 books
Crimson City (hot paranormal romance) was written by Liz Maverick, Carolyn Jewel, Jade Lee and Patti O'Shea.
The Emerald Quest Series (Historical romance) was written by Susanne Bellamy, Annie Seaton and others.
Heart of Main Street by Gail Gaymer Martin, Carolyn Aersen, Arlene James, Brenda Minton and Lissa Manley.
Diamonds Down Under (2008) released by Harlequin Desire includes authors Yvonne Lindsay, Paula Roe, Bronwyn Jameson, Tessa Radley, Maxine Sullivan, and Jan Colley.
Invitation to Eden Series written by Avery Aster, Lauren Hawkeye, Steena Holmes, Jennifer Probst, Suzanne Rock, Tawny Stokes. Julia Kent, Adriana Hunter, Ava Conway, Sharon Page, Kathryn Fox, Eliza Gayle, Daire St. Dennis, Carly Phillips, Erika Wilde, Mari Carr, Roni Loren, Opal Carew, Lauren Jameson, Vivi Anna, Joey W. Hill, Sarah Castille, R.G. Alexander, Jessica Clare, Eden Bradley, Delilah Devlin, Kimberley Kay Terry, Marian Tee.