2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/79374In this paper, a family of smooth multiply connected Calabi--Yau threefolds is investigated. The family presents a counterexample to global Torelli as conjectured by Aspinwall and Morrison.AMSLaTeX, approx. 11 pages, minor changes, final version to appear in PAMSAlgebraic Geometry14J32, 14C34text