Then the chill thrills ran over her.

Bo kept holding on to Helen, which fact hampered Helen as well as worked somewhat to disprove Bo's boast.

At last level ground was reached.

Helen made out a light-gray background crossed by black bars.
Another glance showed this to be the dark tree-trunks against the open park.
Dale halted, and with a touch brought Helen to a straining pause.

He was listening.