Notice these expressions in the text. Infer their meanings from the context.

In great dread of – fearful in anticipation of something
counted on – to rely or trust on somebody/something
thumbed at the edges – worn or soiled edges caused by frequent handling
in unison – something happening or being done at the same time
a great bustle – an excited (and often noisy) activity or a rapid, active commotion
reproach ourselves with – to express disapproval, criticism, or disappointment