The Seventh Toll at Mistbell Manor

A gothic clockwork mystery of solo deduction. Cornwall, 1924: the Goliath strikes seven at a quarter to nine and Sir Arthur Sterling lies dead in a study bolted from inside. Five suspects, three statements each — one culprit who only lies, one secret-keeper who lies once, three innocents who never lie. Reconstruct the night on a living cutaway of the manor, break lies with six pieces of absolute evidence, assign every role and seal an eighteen-blank indictment.