lillian dialed the phone , the number in the memory of her fingertips and her daughter answered and she sounded so grownup , so old , that lillian didnt recognize her voice and then she could not remember who she was calling or why and she just stood there thinking she had to go pick up her children from school , worried she was late and she began to cry because her little girls would be the last ones left , waiting for their mother , wondering where she was .