2 1/2 stars
Take The Stairs in the Chimney, change it to a tunnel and a waterfall, and you have this third book in the series. The children are, once again, a year older and a year wiser, and now must deal with bigger and badder monsters. I was so tired of this story by the time I got to this book, I had to force myself through it. I suppose that after a couple year break I will be able to read this again and I may like it better, but until then I think I will leave the other books in the series on the library shelf.