To the east is the presbytery, closed by the Wallingford or high altar screen. This screen was sorely dilapidated, and all its niches were stripped of their statues, no record remaining of whose statues originally filled them. Mr. H. Hucks Gibbs (now Lord Aldenham) undertook to restore this screen, making good the canopies and filling them again with statues. The screen is of clunch, a hard stone from the lower chalk formation quarried at Tottenhoe near Dunstable, a stone much used for interior work in the church, though it will not stand exposure to weather in exterior walls. The new statues are by Mr. Harry Hems of Exeter; the larger ones of magnesian limestone from Mansfield Woodhouse, Nottinghamshire, and the smaller of alabaster. They are excellent examples of modern carved work. The general idea was to represent "the Passion of our Lord and of the testimony of the faith in that Passion given in the lives and deeds of men"[8] of English race. A careful comparison of the screen (see illustration, p. [58]), with the key given (p. [59]) will enable the reader to identify the persons represented.
The coloured altarpiece in high relief is by Mr. Alfred Gilbert, R.A., and is a work quite unique in character. It represents the resurrection. In the centre is the upper half of our Lord's figure; on one side is an angel holding a cross, emblem of faith; on the other, one holding a crystal globe, emblem of dominion; the wings of these angels are formed of mother-of-pearl, and before them are grills of brass scrollwork, intended to give an air of mystery to their appearance. The work does not appear to be fully finished, the grills being only roughly attached to the wall. The space before the altar is paved with slabs of marble.
In an arch south of the altar is Abbot John of Wheathampstead's chantry, containing a splendid brass of Flemish workmanship, which once covered the grave before the high altar in which Abbot Thomas de la Mare was buried. He is represented in full vestments carrying a pastoral staff and wearing a mitre, according to the Pope's grant, although he was not a bishop but only a mitred abbot, and therefore could not perform the rite of ordination, which could be administered only by the Bishop of Lincoln; the Abbey Church, though independent of him in all other matters, was for this purpose in his diocese. The rebus of Abbot John was three ears of wheat, and his motto "Valles habundabunt," an allusion to the fertile lowland of Wheathampstead, whence he came. This rebus may be found in various places where the work was due to him. Opposite to this chantry is the far more magnificent one of Abbot Thomas Ramryge. His rebus is a ram wearing a collar with the letters R.Y.G.E. inscribed on it. This chantry was at one time, after the dissolution, appropriated as a burial-place for the Ffaringdons, a Lancashire family, but the original slab with Abbot Thomas's figure and inscription has been restored to its place. Within the altar rails are four memorial stone tablets covering the graves of four fourteenth-century Abbots—Thomas de la Mare, Hugh of Eversden, Richard of Wallingford, and Michael of Mentmore. Four other Abbots are known to have been buried beneath the presbytery floor outside the altar rails—John de Marinis, John of Berkhampstead, Roger of Norton, and John Stokes—as well as other monks and laymen. It will be noticed that the presbytery is divided from the aisles by solid walls, pierced only for the two chantries above described, and for two doorways, one on each side, further west. Over each of these doorways is a tabernacle; that on the south was put together of fragments by Sir Gilbert Scott, and that on the north made to match it. The clerestory windows are Lord Grimthorpe's; the painted wooden vaulting which extends beyond the screen and over the Saints' Chapel is John of Wheathampstead's. It will be noticed that this springs from vaulting shafts, and it is by some considered that a stone roof was contemplated. The triforium here is an arcade without any passage. The pulpit, which stands close by the north pier of the eastern tower arch, was designed by Mr. J.O. Scott and given by the Freemasons of England, who regard St. Alban as their patron saint.