Owl is Calm (Paperback) (ISBN-13: 9798195282998)

A wellness retreat for the magically exhausted.
A guru floating in a sensory tank.
A "relaxing" weekend that's anything but zen.

After fighting an elf for the soul of her sister, Astra Arden is ready for a nap. Her sister Althea, fresh from a dimensional kidnapping, needs serious R&R. The solution? A girls' weekend at Serenity Springs. It's supposed to be all lavender mists, crystal grids, and silence... until that silence is shattered by a scream.

When the retreat's charismatic guru is found floating face-down in a sensory deprivation tank, the "no stress" policy is officially void. Trapped behind wards that dampen their magic to ensure "deep healing," Astra and her sisters must root out a killer among the zen-obsessed guests without their usual powers.

With Lothian trying to smuggle in contraband caffeine and Archie engaging in a turf war with the retreat's peacock mascot, Astra has to find the truth before her relaxing getaway becomes a permanent vacation.