Book to explain to children re mum having cancer (BT6)

Written by a mum for her 8 year old child to help explain about her breast cancer and side effects of chemo meaning her hair will fall out. Great analogy in it of weedkiller killing both plants and weeds, likewise good cells that grow hair get destroyed as well as bad cancer cells. But new seeds grow lovely new flower garden again and likewise mum's hair will grow back when bad cells all destroyed. Think our late mum bought it to support the charity it was sold in aid of. We would like to pass it on to someone who really needs it.