Protons

Protons are among the smallest units of matter in existence. Originally believed to be indestructible, the discovery that they can cease to exist triggers self-doubt and increasing fear in protagonist Will Tuppence.

Proton Decay

Proton decay is the name given to the process by which the physical existence of protons slowly, over long periods of time, comes to an end. The physical integrity of the proton breaks down until finally it disintegrates into pure energy.

Will's House

The house where Will and his family live has four stories, one of which (the dormer attic) is the setting for several important encounters.

The Dormer Attic

The top floor of the Tuppence family home is an open attic with dormer windows looking out onto the family's yard and the front sidewalk. This room is where Will goes to retreat from the pestering of his sister, and to think. This...