Pregnancy loss of a grandchild/looking for help

Hello All


I am the Mimi of 2 adorable grandkids and my son and Daughter in law suffered a loss of pregnancy last week at 21 weeks, our little Lillian Elizabeth is now an angel and I am looking for help/support for them.  I am looking for a book to try to explain this loss to my 2 other grandkids (toddlers) and possibly grief support for my son and daughter in law....any suggestions are helpful, thanks so much