This combines some of the most interesting things for a child at a certain age. Toilets, smelly goo, slime, slobber and annoying siblings. Imagine the temptation of being able to flush your brother or sister down the toilet.'Oh come on you wouldn't have' you say. Sorry to burst your bubble but I totally would have flushed my sister and still would if I had the chance.Anyhoo let's leave my Freudian sibling issues aside.My youngest son thought this book was great. The illustrations are easy to follow and recognise. The bright colours in various shades make the yuck and gunk seem so much more icky.It is suitable for readers age 7 up or advanced early readers. My son is seven, isn't an advanced reader and he had no trouble at all. Well maybe just when he giggled at words like slobbering or boogers. We also had a lengthy talk about the possible existence of toilet gnomes.For parents who want to read it to their children, it is fine for younger children also. It starts off with a warning about children not trying to flush siblings at home or elsewhere, just in case you have a child that might ponder and wonder at the possibility. I mean, I would have...flushed my sibling that is.Overall I thought it was a funny and delightful read.I received a free copy of this book for my review.