Magic Seed from the Sea

It is hotter than ever before in Moominvalley. The river has run dry and everything is wilting. Going down to swim one day with the other children Little My finds a large wooden crate floating in the water and when they open it they find it full of strange-looking, tropical seeds. They plant them as they have nothing better to do and next night the rains finally comes, a veritable deluge. The seeds sprout and next day the house is surrounded by a jungle. Bamboo, orchids, fruit-trees, but also some much more dangerous plants...