Maryrose Wood's The Unmapped Sea
The fifth book in the Incorrigible Children of Ashton Place series is here, and it's great, because Penelope finally starts to put all the pieces together! There's also a whole thing with a trip to Brighton, visits with old sea dogs, a family of boisterous Russians straight out of stereotypical Russian fiction, and even a little romance. Things end on a pretty crazy cliffhanger, but now that she's stopped stringing us along, I trust Wood to pull off a strong finale. (Assuming there's only one book left in this series.) I do still miss Jon Klassen's illustrations, but the ones here were fine. B+.