Grandmothers play an active part in family health and illness, but so far they are peripheral in both nursing and nursing research. This article addresses grandmothers' lived experiences when a small grandchild is critically ill. A convenience sample of 7 grandmothers was interviewed once. With the use of the methodology of Van Manen, (1990), the essence of the phenomenon was found to be a "double concern," a worry and loving care that encompassed both parents and grandchildren. Although the findings have limitations, they constitute a systematic and thematic description of Danish grandmothers' experiences and therefore add to a family-oriented body of knowledge in pediatric nursing.