Gradually Maggie recovered composure enough to look up; her eyes met Tom’s, but he turned away his head immediately; and she went to bed that night wondering if he had gathered any suspicion from her confusion.
The swiftest pace and the shortest road took him to the gate, and he was pausing to open it deliberately, that he might walk into the house with an appearance of perfect composure, when Maggie came out at the front door in bonnet and shawl.
There are no more uses of "composure" in the book.
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After I regained my composure, I thanked her for telling me about the problem.
During all this time he was evidently struggling for composure.