Welcome to your comeback era

FORTY LOVE is a battle cry for women who aren't done yet. Not even close. It’s a ‘delightful and hilarious’ book about reinvention, resilience, and the radical act of starting over.

Forty-something single mum Jules lives next to a tennis club, but has no plans to play after being put off sport for life when she was a teenager. That’s doubly true when an old crush from her schooldays, Dr Sam Delaney, is back in their hometown almost three decades after leaving and is now displaying a killer forehand in direct view of her bedroom window.

But when Jules’ 19-year-old daughter goes backpacking around Europe, she’s wracked with anxiety and in urgent need of a distraction. Rashly, she agrees to join an amateur women's tennis team, who are bottom of every league league, on the verge of collapse. They are desperate for players.

The fact that she can't really play doesn't seem to matter.

Forty Love is published in the UK and USA in May 2026.

Your comeback starts now.

Hi, I’m Jane.

(but you might also know me as Catherine).

I write under different names, not to confuse everyone (though it sometimes does!), but because my books have slightly different styles. For my Sunday Times bestselling romantic comedy, look for Jane Costello; for my emotional love stories, go to Catherine Isaac . . . READ MORE

Romantic comedy

Emotional love stories

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Bonus chapters

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