Memo: For Ministry of Strange, Unusual, and Impossible Things Operatives Only
Re: The Monster's Daughter by Paul Gamble

There is more trouble in Belfast: odd things are happening at the aquarium, giant crabs are staging jail breaks, and formerly harmless bath bombs are destroying bathrooms left and right.
Fortunately, our brave new recruits—Jack, a curious boy skilled at logical thinking, and Trudy, the most dangerous girl in school—are on the case. Armed with the best Ministry training (as long as you don't panic everything will be fine) and full access to Ministry supplies (those that weren't ruined in the recent flood), we are confident that they can discover and foil this villainous plot.
Please give them all possible assistance. Oh, and be sure not to share their location, as Jack is still on the run from the Tooth Fairy.