I'm stuck...
Spoiler
...in the dolls house.
I've found the magnetic boy, and I've used him on every magnet, to no avail. And I've used Kelvin on the broken wire to light up the Hugo and Paul board, but I can't do anything else... I'm obviously missing something. Ibi can't tow the cabinet under the water, none of them can move the wardrobe, so I can't get to the exit behind it, and none of them can open the trapdoor so I can't go upstairs.
Cheers :)