MG book about girls writing a book

This book is one my sister owned in the early or mid 1980s. It may have been a Scholastic book. I think the cover was white. I think it was a fairly recent publication at the time my sister owned it.

Plot: Two girls decide to write a mystery about Lady Penelope. At one point, Lady Penelope is hiding in the hydrangea bushes. The story within the story may have been set in Hawaii. The young would-be authors do a lot more giggling together than actual writing.

Does this ring a bell for anyone?

Brink, Two are better than one
Scholastic, mostly white cover. Not all details match.

>2 bookel: This sounds like a very nice book, but it is not the one I'm looking for. The book I'm remembering was more Ramona and less Little House on the Prairie. Still, I think I need to give this book a read, too.

Two Are Better Than One is a delightful book, but I do hope you find the title you're looking for.

I think there's a Judy Blume book from the 1980s where something like that happens, two girls writing a story together, they write a couple of lines each time and then stop from exhaustion, lol. Not sure which one it was though ... maybe it's in Are You There God, It's Me Margaret.

>5 Cecrow: I took a look and Judy Blume's book, and none of them appear to be the one. It's definitely not Are You There. But the part about the girls only writing a couple of lines each time is spot on. I think you read the same book I'm talking about. It just doesn't seem to be one of Blume's.

I feel like I stumbled across it a second time later, but I don't think I've read it to my kids. Not sure what the circumstances were in that case, that I would find it again.

So we have: 1980s book for kids, central character is female, has a female friend, aspires to be a writer (but, I think not too seriously). This scene was just a throwaway aside that has a strange grip on our memories for some reason. I feel like there was some kind of drama with the friend, they parted ways because of an argument or something and then reunited later.

>7 Cecrow: That seems right. The part that most sticks in my mind is the bit about their character Lady Penelope hiding in the bushes.

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>9 AWalkerScott:, my foggy memory just keeps circling back to Blume's Margaret book. I guess you were very thorough in ruling that out, though. I don't have a copy at home. I didn't read much of this type of thing, that was one of the few. The other one I thought of is Harriet the Spy, but I do have a copy of that and can rule it out myself. Harriet is more serious about her writing and does it independently.

>10 Cecrow: Quite sure.

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