I have the complete sets of "Nightwalkers" and "Shadowdwellers" by Jacquelyn Frank.  They are paranormal romances and trade paperbacks:

"Nightwalkers":

• "Jacob"
• "Gideon"
• "Elijah"
• "Damien"
• "Noah"
• "Adam"

"Shadowdwellers":

• "Ecstasy"
• "Rapture"
• "Pleasure"

All of these are in very good condition - some have numbers written on the front and "Adam" has spine creases, but all have tight and clean pages. They are from a smoke-free home and shipping is free in the U.S.  Please check my other listings - I will be glad to discount multiple purchases.