An Echo of Magic. The Resonant Arcana, #1

Ancient grimoires. Deadly shadows. When magic calls, darkness answers... A pulsing blue grimoire hidden in the library stacks was never part of Vesper Ainsley's carefully ordered world. But when her friend Selene dies under mysterious circumstances, the ancient spellbook chooses Vesper as its new wielder, awakening a raw, untamed power within her that threatens to spiral beyond her control. Pursued by grotesque creatures and shadowy figures through London's supernatural underbelly, Vesper's only ally is the enigmatic mage Rafe.
Together, they must navigate Nightreach-a shadow city that exists in the spaces between reality, where magic warps the very fabric of London itself. Here, ancient powers scheme in the darkness and Selene's murder is just the beginning of a deadly conspiracy. With shadow creatures hunting the grimoire and dark mages closing in, Vesper must master her abilities and unravel the truth behind Selene's murder.
But in a city where magic whispers from every shadow, her untamed powers might just be her downfall. An Echo of Magic is a spellbinding urban fantasy where ancient powers collide with modern-day London. Can Vesper master the grimoire's power before it consumes her? Or will the darkness spreading through Nightreach's magical underground claim both the grimoire and her newfound power?