Mr Bloom's fete has come to Cornwall and Margaret is excited because her pineapple pen-pal, Deborah, is coming to visit - but will it be warm enough for her? Mr Bloom and Joan discover
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Mr Bloom's fete has come to Cornwall and Margaret is excited because her pineapple pen-pal, Deborah, is coming to visit - but will it be warm enough for her? Mr Bloom and Joan discover how greenhouses keep plants warm, so the Tiddlers make a mini-greenhouse for Deborah out of leftover plastic bottles!