if the worst should happen―in case of emergency―in case of need―in time of need
何かあったのか.
Anything new?
Something may happen.
to hasten to do something―lose no time in doing something
in spite of everything
あの何やらいうもの
that what-do-you-call-it―that thingumbob
I wonder what I ought to do.
Whatever one may say―Say what one will―after all.
What can have become of him?