Claudia is single-minded in her commitment to figuring out the truth about Angel’s origins. Realistically, the kids don’t have very much evidence to go on, but even if solving the mystery is unlikely, Claudia clearly feels uniquely drawn to the statue. Though the kids claim they aren’t homesick, it’s possible that they’re not being totally honest with themselves. Or, perhaps more likely, the novelty and excitement of running away has crowded out homesickness.