GR translation: below the bone resonance of any words

[Mike Jing]

V97.33-40, P99.28-36   he can give you no reason but in his heart he
trusts, perhaps only, by now, in the form, this out of all Märchen und
Sagen, trusts that this charmed house in the forest will be preserved, that
no bombs could ever fall here by accident, only betrayal, only if Katje
really were a spotter for the English and bade them—and he knows she
cannot: that through some magic, below the bone resonance of any words, a
British raid is the one prohibited shape of all possible pushes from
behind, into the Oven’s iron and final summer.

What does "below the bone resonance of any words" mean here?