ISBN-13: 9781913230289 / Angielski / Miękka / 2022 / 32 str.
If you think that pollution is not your concern, then like little Gertrude you've got lots to learn. She lies in her treehouse like the laziest lump, and shouts from her hammock across the whole dump: "What on EARTH are you saying? Why can’t you see? It’s not that I’m lazy, it’s just not up to me!”