Durarara!! SH, Vol. 4 (light novel)

A year and a half after the fall of the Dollars, the trio from RairaAcademy pay a visit to
Anri and her new antique shop in Ikebukuro. Shortlyafter a certain someone pressures
her to sell them Saika, her business isransacked. But when Celty gets a tip about Anri
and rushes over to her shop,she comes face to face with Akabayashi and others
involved with the blade.What further secrets does this cursed weapon keep...?