Meet the Coastal Rescue Team. They are practically the only sensible and sensibly-named things in the town, famous for a Saint Street (hence Saint Street Street and other, er, hilarious landmarks). The two kids in it, Lily and Sandy (who seems to be half-merman) are worried about finding animals in trouble – and about the big nasty company from elsewhere coming to take the nautical museum Sandy calls home for themselves. Still, while there is a magical golden statue lost in the bay there is always hope, right? They can just find that – unlike everyone else who's ever looked for it – and rescue the place by using the charm it holds to restore everything, right?

This is a full-on bunch of cockamamie, very low on common sense at times and lacking subtlety, but with a high level of energy, for sure. Despite my jibe about the daft names there is some fun word play here, some involving a daft name it took me far too long to work out the point of, and quips, yucks and Easter-egg-styled-quotes-for-the-passing-adults galore. So even though "half" the baddie's lorries are outside the museum (when we've had it reinforced time and time again there are three of them), and even though the pictures leave out the breathing tube of the prehistoric diving gear, this is not just a bit of daftness.

No, what it is is a slice of jolliness – with a hint of environmental lesson, as kelp forests are just as much in danger as the town museum. It all comes along pell-mell fashion, but with its heart in the right place and with so much vim and chutzpah you can only be won over. I mean, it could have been better, as I think I made clear, but this is still four-star good in the finish, and the further books in this series have little excuse for not being a grand set of japes. It doesn't begin to explain Sandy's scaly skin and diving ability, nor why the museum is so Heath Robinson, but accept that and a lot more and you'll be accepting this on your shelves very happily.