House of Many Ways

Charmain Baker thought a quiet stint housesitting for her great-uncle William would be simple. Instead, the house turns out to be a shifting magical maze with doors that open onto different rooms depending on the day, and she is suddenly responsible for a stray magical dog and an unruly wizard's apprentice.

As Charmain fumbles through chores she has never had to do for herself, she gets pulled into a larger problem: the kingdom's finances are missing, and the king is searching for a legendary magical object that might explain why. Familiar faces from the earlier books — Wizard Howl and his wife Sophie — turn up to help untangle the mess.

A quieter, more domestic entry in the series, focused on growing up and taking responsibility as much as on magic.