This is book 4 of the "Modesty Blaise" series.

This note contains spoilers for the book.

I read Sabre-Tooth and I, Lucifer recently enough that I'm skipping down to this, the fourth book. I'm not sure I've ever really read them in order; the lists in most of my editions aren't in order, and there's no clearly stated order.

Another highly-psychic one, just after I, Lucifer. I believe Stephen Collier was introduced there. He features here, and is introduced to Dinah Pilgrim, who he marries at the end. Willie was seriously considering marrying Dinah, and Stephen had proposed to Modesty, but it didn't work out that way.

This has one of the highest casualty-counts -- Prof. Tangye, his wife, and their entire team, while alive, probably aren't good for much any more. Of course really that was true at the beginning of the book; it's not a result of anything Modesty and Willie do. Their being alive at all is a result of what Modesty and Willie do.

Gabriel and McWhirter are a reprise from the first book. Delicata is new; a brainy bad-guy whos brawn is so extreme people think he's an ape (which contributes to driving him away from society). But he's too dedicated to his amusements; and, by the end of the book, he's also quite dead.

They end up in possession of a major treasure at the end of this one, but they're probably never going to do anything with it. I wonder if they had the napkin rings with the huge rubies on them made?

Willie is diving for pearls at the start of this one, and finds the last one he needs for the amazing necklace he gives her. That arrives towards the middle, without even a note. A relaxing way to spend your vacations for 6 years, right?