make a cast from.â The sand had dried a little while the tide was out, but the high water table and the deep green shadows would ensure that it remained permanently damp, even in the height of summer. The same ancient mix of sand and clay had preserved the most unlikely items all along this part of the Thames, from the phallic silver brothel-brooches of Southwarkâs whores to a single banana found in 1999, which had been discovered lying whole under the waterlogged beach and dated back to 1560, a full century before the fruit was ever known to be exported to Britain.
Banbury heard nothing more and looked up. âSorry, John, not with you.â
May pointed down at a faint wavering line of crescent indentations in the sand, leading from the embankment wall to the concrete stanchion. âYou donât think they could still be the remains of footprints?â He tried to see where they ended.
âWhy would there be any prints at all?â asked Banbury, checking his watch. âItâs past noon. The tideâs been in and gone out again.â
May headed to the edge and bent down, placing his fingers in the water to feel its pressure against them. âMaybe there werenât many waves last night. Thereâs no river traffic passing near here. The Towerâs restricted and boats canât get in close because the pierâs in the way.â
âBut thereâs still the current, John. I would have thought it would wash out most of the markings.â
âThe tidal flow must be less pronounced in this stretch. Look at the rise in the shoreline. Thereâs a hump left by the residue of the old Tower Beach.â A row of seagulls regarded May insolently. One of them was pulling at something best left unexamined. âThey didnât take the sand away when they closed it, they just left it where it was, so the water washes around it. Those marks â OK, there are no details left but theyâre definitely prints from a small shoe size.â
âIf theyâre the remains of hers, where are his?â asked Banbury. âHow did he get her down here? I mean, seriously? It would be impossible. If she was already dead he would have had to drag her right across the forecourt to the offices, get her through the building and out of the back. Either that or over that gate beside the stone house. Come to think of it, if she was alive heâd have had the same problem.â He stood and stretched his back. The cold river air was getting to him as well.
May felt a chill. âThe water at the front, the wall at the back, one set of prints, it doesnât make sense.â
âThereâs something else about these prints,â said Banbury. âThe heavy indentation is the heel. Theyâre facing towards the waterline, as if she went down there alone.â
May traced the route with his raised hand. âIf she was alive he could have rendered her unconscious on the staircase and carried her out on to the strand.â
âWhat, you think they had a fight on the embankment and he knocked her out by reaching around to the back of her head with something long and heavy? Without anyone seeing or hearing a thing? Even though itâs empty, this section of the river walk is still pretty exposed. Thereâs usually a bit of foot traffic nearby.â Banbury turned and stared back at the green staves supporting the embankment like animal ribs. âYou might be able to see it from the next reach.â
âBut not at night.â
âEven so, youâd think
someone
would have noticed them.â He took out a fresh packet of gloves and tore it open. âThe last time I walked down this new stretch was after a mateâs birthday. I thought Iâd take a look at the commemorative poppies in the Tower of London moat. It must have been around midnight. I donât really remember, I wasnât exactly sober.â
âWhy would you have come down this