Robert Sopher of Villa Park used the pen name V.K. Roberts to write “Mistletoe,” a book for young children. The book was released in December and is available through the websites of multiple booksellers, including Amazon, Barnes & Noble and Books-A-Million. Sopher describes the interactive book as his version of “This Little Piggy.” He is donating a portion of the sales from “Mistletoe” to St. Jude Children’s Research Hospital.