The children's book community mourns the untimely death of Craig Virden, 56, former head of Random House Books for Young Readers Group. He died yesterday morning of a pulmonary embolism, according to Publishers Weekly. Our thoughts are with his wife, Nancy, of Nancy Gallt Literary Agency, his daughter, Emily, and his son, Sam. A memorial service will be held on Wednesday, May 27, at 4:30 p.m. in St. Peter’s Church at 619 Lexington Ave. in New York City.