In regard to the manner in which the children are saved, it is difficult to correlate the Hroar-Helgi story with the Meriadoc story as definitely and simply as one would wish, but the explanation probably lies in the following idea expressed by Bruce, "In conclusion, as to this division there seems to be a certain confusion of _motifs_ in the first part of the _Historia Meriadoci_ with regard to the manner in which the children are saved from execution."[148] The statement, for instance, that the children were suspended for half a day is out of all harmony with the statement that they were to be suspended by slender ropes, easily broken, that would permit them to fall to the ground unharmed. But Bruce's statement quoted above, "This Welsh version, no doubt, passed through the hands of a French romancer before reaching the author of our Latin text," would account for the "confusion of _motifs_"; and the fact that we have not now that form of the story with which the Hroar-Helgi story came in contact would obscure some of the points of relationship between the two. But the hiding of a dog, whose name is given, in an oak tree of a particular species (ilex) is so definite and unique a point of identification that there is no mistaking it. But even if we had the Meriadoc story in its original form, we should not expect to find it exactly reproduced in the Hroar-Helgi story. Various causes would operate to introduce changes. Such features as mountain-rocks with their eagle-nests would be modified to bring the topography more into harmony with that of Denmark, so that the caverned rock would naturally become an earth-cave. Characteristics of Scandinavian life and history would supplant what was peculiarly Welsh. Thus the shrewd old shepherd, Vifil, naturally takes the place of the royal huntsman, Ivor; and Saxo, quite naturally, gives the story a marked Danish geographical and historical setting, which he does by introducing such names as Fyen and Seeland, and by connecting the Danish royal family in the beginning of the story with those of Sweden and Gautland. Allowance must also be made for two lines of oral transmission, one going to Iceland, and the other to Norway and thence to Denmark. This would result in the modification of details in the two versions, such as details connected with the insanity motive and the concealment of the boys, and the omission, in one version, of the dogs' names supposed to be applied to the boys and the insertion of the names in the other. But this would not explain why Hroar, Helgi, and their father are given other names in Saxo's version, and why such a radical change has been made in the family relationship of Siward and Signy. This, however, as will be explained later,[149] is due to arbitrary action on the part of Saxo, in order to conceal the fact that he twice includes the same group of men in his line of Danish kings.