We have here much data, and we must proceed to lay out our campaign.

We know from the inquiry of Jonathan that from the castle to Whitby came fifty boxes of earth, all of which were delivered at Carfax, we also know that at least some of these boxes have been removed.

It seems to me, that our first step should be to ascertain whether all the rest remain in the house beyond that wall where we look today, or whether any more have been removed.
If the latter, we must trace.

.

." Here we were interrupted in a very startling way.