What message from Simon causes Daniel to leave the mountain in The Bronze Bow?

Daniel receives the message from Simon that his grandmother is dying. He rushes to the village and discovers from the neighbors that no one has seen his grandmother leave the house for the last ten days. They have tossed bread through the window to sustain the dying woman and Daniel's sister Leah, who suffers from a traumatic, emotional injury incurred at the age of five when she saw her father crucified. Daniel breaks in the door and finds his grandmother nearly dead. He lights a fire and gives the old woman broth and bread provided by the neighbors. During the night, he shares pleasant memories of his childhood with the dying woman and eases her passage. Now Daniel must remain and care for his sister though he longs to return to the mountain and Rosh's men.